320019700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:207

約数の個数: 288

約数和(自身を含む): 979937280

約数和(自身を除く): 659917580

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 23, 25, 26, 28, 35, 44, 46, 50, 52, 55, 65, 70, 77, 91, 92, 100, 110, 115, 130, 139, 140, 143, 154, 161, 175, 182, 220, 230, 253, 260, 275, 278, 286, 299, 308, 322, 325, 350, 364, 385, 455, 460, 506, 550, 556, 572, 575, 598, 644, 650, 695, 700, 715, 770, 805, 910, 973, 1001, 1012, 1100, 1150, 1196, 1265, 1300, 1390, 1430, 1495, 1529, 1540, 1610, 1771, 1807, 1820, 1925, 1946, 2002, 2093, 2275, 2300, 2530, 2780, 2860, 2990, 3058, 3197, 3220, 3289, 3475, 3542, 3575, 3614, 3850, 3892, 4004, 4025, 4186, 4550, 4865, 5005, 5060, 5980, 6116, 6325, 6394, 6578, 6950, 7084, 7150, 7228, 7475, 7645, 7700, 8050, 8372, 8855, 9035, 9100, 9730, 10010, 10465, 10703, 12649, 12650, 12788, 13156, 13900, 14300, 14950, 15290, 15985, 16100, 16445, 17710, 18070, 19460, 19877, 20020, 20930, 21406, 22379, 23023, 24325, 25025, 25298, 25300, 29900, 30580, 31970, 32890, 35167, 35420, 36140, 38225, 39754, 41561, 41860, 42812, 44275, 44758, 45175, 46046, 48650, 50050, 50596, 52325, 53515, 63245, 63940, 65780, 70334, 76450, 79508, 79925, 82225, 83122, 88550, 89516, 90350, 92092, 97300, 99385, 100100, 104650, 107030, 111895, 115115, 126490, 139139, 140668, 152900, 159850, 164450, 166244, 175835, 177100, 180700, 198770, 207805, 209300, 214060, 223790, 230230, 246169, 252980, 267575, 278278, 290927, 316225, 319700, 328900, 351670, 397540, 415610, 447580, 457171, 460460, 492338, 496925, 535150, 556556, 559475, 575575, 581854, 632450, 695695, 703340, 831220, 879175, 914342, 984676, 993850, 1039025, 1070300, 1118950, 1151150, 1163708, 1230845, 1264900, 1391390, 1454635, 1758350, 1828684, 1987700, 2078050, 2237900, 2285855, 2302300, 2461690, 2782780, 2909270, 3200197, 3478475, 3516700, 4156100, 4571710, 4923380, 5818540, 6154225, 6400394, 6956950, 7273175, 9143420, 11429275, 12308450, 12800788, 13913900, 14546350, 16000985, 22858550, 24616900, 29092700, 32001970, 45717100, 64003940, 80004925, 160009850, 320019700]

約数ペア:

[(1, 320019700), (2, 160009850), (4, 80004925), (5, 64003940), (7, 45717100), (10, 32001970), (11, 29092700), (13, 24616900), (14, 22858550), (20, 16000985), (22, 14546350), (23, 13913900), (25, 12800788), (26, 12308450), (28, 11429275), (35, 9143420), (44, 7273175), (46, 6956950), (50, 6400394), (52, 6154225), (55, 5818540), (65, 4923380), (70, 4571710), (77, 4156100), (91, 3516700), (92, 3478475), (100, 3200197), (110, 2909270), (115, 2782780), (130, 2461690), (139, 2302300), (140, 2285855), (143, 2237900), (154, 2078050), (161, 1987700), (175, 1828684), (182, 1758350), (220, 1454635), (230, 1391390), (253, 1264900), (260, 1230845), (275, 1163708), (278, 1151150), (286, 1118950), (299, 1070300), (308, 1039025), (322, 993850), (325, 984676), (350, 914342), (364, 879175), (385, 831220), (455, 703340), (460, 695695), (506, 632450), (550, 581854), (556, 575575), (572, 559475), (575, 556556), (598, 535150), (644, 496925), (650, 492338), (695, 460460), (700, 457171), (715, 447580), (770, 415610), (805, 397540), (910, 351670), (973, 328900), (1001, 319700), (1012, 316225), (1100, 290927), (1150, 278278), (1196, 267575), (1265, 252980), (1300, 246169), (1390, 230230), (1430, 223790), (1495, 214060), (1529, 209300), (1540, 207805), (1610, 198770), (1771, 180700), (1807, 177100), (1820, 175835), (1925, 166244), (1946, 164450), (2002, 159850), (2093, 152900), (2275, 140668), (2300, 139139), (2530, 126490), (2780, 115115), (2860, 111895), (2990, 107030), (3058, 104650), (3197, 100100), (3220, 99385), (3289, 97300), (3475, 92092), (3542, 90350), (3575, 89516), (3614, 88550), (3850, 83122), (3892, 82225), (4004, 79925), (4025, 79508), (4186, 76450), (4550, 70334), (4865, 65780), (5005, 63940), (5060, 63245), (5980, 53515), (6116, 52325), (6325, 50596), (6394, 50050), (6578, 48650), (6950, 46046), (7084, 45175), (7150, 44758), (7228, 44275), (7475, 42812), (7645, 41860), (7700, 41561), (8050, 39754), (8372, 38225), (8855, 36140), (9035, 35420), (9100, 35167), (9730, 32890), (10010, 31970), (10465, 30580), (10703, 29900), (12649, 25300), (12650, 25298), (12788, 25025), (13156, 24325), (13900, 23023), (14300, 22379), (14950, 21406), (15290, 20930), (15985, 20020), (16100, 19877), (16445, 19460), (17710, 18070)]