81431700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2281}}^1$

素因数の和:2322

約数の個数: 144

約数和(自身を含む): 285231744

約数和(自身を除く): 203800044

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 25, 28, 30, 34, 35, 42, 50, 51, 60, 68, 70, 75, 84, 85, 100, 102, 105, 119, 140, 150, 170, 175, 204, 210, 238, 255, 300, 340, 350, 357, 420, 425, 476, 510, 525, 595, 700, 714, 850, 1020, 1050, 1190, 1275, 1428, 1700, 1785, 2100, 2281, 2380, 2550, 2975, 3570, 4562, 5100, 5950, 6843, 7140, 8925, 9124, 11405, 11900, 13686, 15967, 17850, 22810, 27372, 31934, 34215, 35700, 38777, 45620, 47901, 57025, 63868, 68430, 77554, 79835, 95802, 114050, 116331, 136860, 155108, 159670, 171075, 191604, 193885, 228100, 232662, 239505, 271439, 319340, 342150, 387770, 399175, 465324, 479010, 542878, 581655, 684300, 775540, 798350, 814317, 958020, 969425, 1085756, 1163310, 1197525, 1357195, 1596700, 1628634, 1938850, 2326620, 2395050, 2714390, 2908275, 3257268, 3877700, 4071585, 4790100, 5428780, 5816550, 6785975, 8143170, 11633100, 13571950, 16286340, 20357925, 27143900, 40715850, 81431700]

約数ペア:

[(1, 81431700), (2, 40715850), (3, 27143900), (4, 20357925), (5, 16286340), (6, 13571950), (7, 11633100), (10, 8143170), (12, 6785975), (14, 5816550), (15, 5428780), (17, 4790100), (20, 4071585), (21, 3877700), (25, 3257268), (28, 2908275), (30, 2714390), (34, 2395050), (35, 2326620), (42, 1938850), (50, 1628634), (51, 1596700), (60, 1357195), (68, 1197525), (70, 1163310), (75, 1085756), (84, 969425), (85, 958020), (100, 814317), (102, 798350), (105, 775540), (119, 684300), (140, 581655), (150, 542878), (170, 479010), (175, 465324), (204, 399175), (210, 387770), (238, 342150), (255, 319340), (300, 271439), (340, 239505), (350, 232662), (357, 228100), (420, 193885), (425, 191604), (476, 171075), (510, 159670), (525, 155108), (595, 136860), (700, 116331), (714, 114050), (850, 95802), (1020, 79835), (1050, 77554), (1190, 68430), (1275, 63868), (1428, 57025), (1700, 47901), (1785, 45620), (2100, 38777), (2281, 35700), (2380, 34215), (2550, 31934), (2975, 27372), (3570, 22810), (4562, 17850), (5100, 15967), (5950, 13686), (6843, 11900), (7140, 11405), (8925, 9124)]