20103960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 64152000

約数和(自身を除く): 44048040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 53, 58, 60, 87, 106, 109, 116, 120, 145, 159, 174, 212, 218, 232, 265, 290, 318, 327, 348, 424, 435, 436, 530, 545, 580, 636, 654, 696, 795, 870, 872, 1060, 1090, 1160, 1272, 1308, 1537, 1590, 1635, 1740, 2120, 2180, 2616, 3074, 3161, 3180, 3270, 3480, 4360, 4611, 5777, 6148, 6322, 6360, 6540, 7685, 9222, 9483, 11554, 12296, 12644, 13080, 15370, 15805, 17331, 18444, 18966, 23055, 23108, 25288, 28885, 30740, 31610, 34662, 36888, 37932, 46110, 46216, 47415, 57770, 61480, 63220, 69324, 75864, 86655, 92220, 94830, 115540, 126440, 138648, 167533, 173310, 184440, 189660, 231080, 335066, 346620, 379320, 502599, 670132, 693240, 837665, 1005198, 1340264, 1675330, 2010396, 2512995, 3350660, 4020792, 5025990, 6701320, 10051980, 20103960]

約数ペア:

[(1, 20103960), (2, 10051980), (3, 6701320), (4, 5025990), (5, 4020792), (6, 3350660), (8, 2512995), (10, 2010396), (12, 1675330), (15, 1340264), (20, 1005198), (24, 837665), (29, 693240), (30, 670132), (40, 502599), (53, 379320), (58, 346620), (60, 335066), (87, 231080), (106, 189660), (109, 184440), (116, 173310), (120, 167533), (145, 138648), (159, 126440), (174, 115540), (212, 94830), (218, 92220), (232, 86655), (265, 75864), (290, 69324), (318, 63220), (327, 61480), (348, 57770), (424, 47415), (435, 46216), (436, 46110), (530, 37932), (545, 36888), (580, 34662), (636, 31610), (654, 30740), (696, 28885), (795, 25288), (870, 23108), (872, 23055), (1060, 18966), (1090, 18444), (1160, 17331), (1272, 15805), (1308, 15370), (1537, 13080), (1590, 12644), (1635, 12296), (1740, 11554), (2120, 9483), (2180, 9222), (2616, 7685), (3074, 6540), (3161, 6360), (3180, 6322), (3270, 6148), (3480, 5777), (4360, 4611)]