205338420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:811

約数の個数: 216

約数和(自身を含む): 748919808

約数和(自身を除く): 543581388

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 49, 60, 62, 63, 70, 84, 90, 93, 98, 105, 124, 126, 140, 147, 155, 180, 186, 196, 210, 217, 245, 252, 279, 294, 310, 315, 372, 420, 434, 441, 465, 490, 558, 588, 620, 630, 651, 735, 751, 868, 882, 930, 980, 1085, 1116, 1260, 1302, 1395, 1470, 1502, 1519, 1764, 1860, 1953, 2170, 2205, 2253, 2604, 2790, 2940, 3004, 3038, 3255, 3755, 3906, 4340, 4410, 4506, 4557, 5257, 5580, 6076, 6510, 6759, 7510, 7595, 7812, 8820, 9012, 9114, 9765, 10514, 11265, 13020, 13518, 13671, 15020, 15190, 15771, 18228, 19530, 21028, 22530, 22785, 23281, 26285, 27036, 27342, 30380, 31542, 33795, 36799, 39060, 45060, 45570, 46562, 47313, 52570, 54684, 63084, 67590, 68355, 69843, 73598, 78855, 91140, 93124, 94626, 105140, 110397, 116405, 135180, 136710, 139686, 147196, 157710, 162967, 183995, 189252, 209529, 220794, 232810, 236565, 273420, 279372, 315420, 325934, 331191, 349215, 367990, 419058, 441588, 465620, 473130, 488901, 551985, 651868, 662382, 698430, 735980, 814835, 838116, 946260, 977802, 1047645, 1103970, 1140769, 1324764, 1396860, 1466703, 1629670, 1655955, 1955604, 2095290, 2207940, 2281538, 2444505, 2933406, 3259340, 3311910, 3422307, 4190580, 4563076, 4889010, 5703845, 5866812, 6623820, 6844614, 7333515, 9778020, 10266921, 11407690, 13689228, 14667030, 17111535, 20533842, 22815380, 29334060, 34223070, 41067684, 51334605, 68446140, 102669210, 205338420]

約数ペア:

[(1, 205338420), (2, 102669210), (3, 68446140), (4, 51334605), (5, 41067684), (6, 34223070), (7, 29334060), (9, 22815380), (10, 20533842), (12, 17111535), (14, 14667030), (15, 13689228), (18, 11407690), (20, 10266921), (21, 9778020), (28, 7333515), (30, 6844614), (31, 6623820), (35, 5866812), (36, 5703845), (42, 4889010), (45, 4563076), (49, 4190580), (60, 3422307), (62, 3311910), (63, 3259340), (70, 2933406), (84, 2444505), (90, 2281538), (93, 2207940), (98, 2095290), (105, 1955604), (124, 1655955), (126, 1629670), (140, 1466703), (147, 1396860), (155, 1324764), (180, 1140769), (186, 1103970), (196, 1047645), (210, 977802), (217, 946260), (245, 838116), (252, 814835), (279, 735980), (294, 698430), (310, 662382), (315, 651868), (372, 551985), (420, 488901), (434, 473130), (441, 465620), (465, 441588), (490, 419058), (558, 367990), (588, 349215), (620, 331191), (630, 325934), (651, 315420), (735, 279372), (751, 273420), (868, 236565), (882, 232810), (930, 220794), (980, 209529), (1085, 189252), (1116, 183995), (1260, 162967), (1302, 157710), (1395, 147196), (1470, 139686), (1502, 136710), (1519, 135180), (1764, 116405), (1860, 110397), (1953, 105140), (2170, 94626), (2205, 93124), (2253, 91140), (2604, 78855), (2790, 73598), (2940, 69843), (3004, 68355), (3038, 67590), (3255, 63084), (3755, 54684), (3906, 52570), (4340, 47313), (4410, 46562), (4506, 45570), (4557, 45060), (5257, 39060), (5580, 36799), (6076, 33795), (6510, 31542), (6759, 30380), (7510, 27342), (7595, 27036), (7812, 26285), (8820, 23281), (9012, 22785), (9114, 22530), (9765, 21028), (10514, 19530), (11265, 18228), (13020, 15771), (13518, 15190), (13671, 15020)]