20870850

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:185

約数の個数: 192

約数和(自身を含む): 69995520

約数和(自身を除く): 49124670

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 21, 22, 25, 26, 30, 33, 35, 39, 42, 50, 55, 65, 66, 70, 75, 77, 78, 91, 105, 110, 130, 139, 143, 150, 154, 165, 175, 182, 195, 210, 231, 273, 275, 278, 286, 325, 330, 350, 385, 390, 417, 429, 455, 462, 525, 546, 550, 650, 695, 715, 770, 825, 834, 858, 910, 973, 975, 1001, 1050, 1155, 1365, 1390, 1430, 1529, 1650, 1807, 1925, 1946, 1950, 2002, 2085, 2145, 2275, 2310, 2730, 2919, 3003, 3058, 3475, 3575, 3614, 3850, 4170, 4290, 4550, 4587, 4865, 5005, 5421, 5775, 5838, 6006, 6825, 6950, 7150, 7645, 9035, 9174, 9730, 10010, 10425, 10703, 10725, 10842, 11550, 12649, 13650, 14595, 15015, 15290, 18070, 19877, 20850, 21406, 21450, 22935, 24325, 25025, 25298, 27105, 29190, 30030, 32109, 37947, 38225, 39754, 45175, 45870, 48650, 50050, 53515, 54210, 59631, 63245, 64218, 72975, 75075, 75894, 76450, 90350, 99385, 107030, 114675, 119262, 126490, 135525, 139139, 145950, 150150, 160545, 189735, 198770, 229350, 267575, 271050, 278278, 298155, 316225, 321090, 379470, 417417, 496925, 535150, 596310, 632450, 695695, 802725, 834834, 948675, 993850, 1391390, 1490775, 1605450, 1897350, 2087085, 2981550, 3478475, 4174170, 6956950, 10435425, 20870850]

約数ペア:

[(1, 20870850), (2, 10435425), (3, 6956950), (5, 4174170), (6, 3478475), (7, 2981550), (10, 2087085), (11, 1897350), (13, 1605450), (14, 1490775), (15, 1391390), (21, 993850), (22, 948675), (25, 834834), (26, 802725), (30, 695695), (33, 632450), (35, 596310), (39, 535150), (42, 496925), (50, 417417), (55, 379470), (65, 321090), (66, 316225), (70, 298155), (75, 278278), (77, 271050), (78, 267575), (91, 229350), (105, 198770), (110, 189735), (130, 160545), (139, 150150), (143, 145950), (150, 139139), (154, 135525), (165, 126490), (175, 119262), (182, 114675), (195, 107030), (210, 99385), (231, 90350), (273, 76450), (275, 75894), (278, 75075), (286, 72975), (325, 64218), (330, 63245), (350, 59631), (385, 54210), (390, 53515), (417, 50050), (429, 48650), (455, 45870), (462, 45175), (525, 39754), (546, 38225), (550, 37947), (650, 32109), (695, 30030), (715, 29190), (770, 27105), (825, 25298), (834, 25025), (858, 24325), (910, 22935), (973, 21450), (975, 21406), (1001, 20850), (1050, 19877), (1155, 18070), (1365, 15290), (1390, 15015), (1430, 14595), (1529, 13650), (1650, 12649), (1807, 11550), (1925, 10842), (1946, 10725), (1950, 10703), (2002, 10425), (2085, 10010), (2145, 9730), (2275, 9174), (2310, 9035), (2730, 7645), (2919, 7150), (3003, 6950), (3058, 6825), (3475, 6006), (3575, 5838), (3614, 5775), (3850, 5421), (4170, 5005), (4290, 4865), (4550, 4587)]