28687560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:339

約数の個数: 128

約数和(自身を含む): 95247360

約数和(自身を除く): 66559800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 103, 110, 120, 132, 165, 206, 211, 220, 264, 309, 330, 412, 422, 440, 515, 618, 633, 660, 824, 844, 1030, 1055, 1133, 1236, 1266, 1320, 1545, 1688, 2060, 2110, 2266, 2321, 2472, 2532, 3090, 3165, 3399, 4120, 4220, 4532, 4642, 5064, 5665, 6180, 6330, 6798, 6963, 8440, 9064, 9284, 11330, 11605, 12360, 12660, 13596, 13926, 16995, 18568, 21733, 22660, 23210, 25320, 27192, 27852, 33990, 34815, 43466, 45320, 46420, 55704, 65199, 67980, 69630, 86932, 92840, 108665, 130398, 135960, 139260, 173864, 217330, 239063, 260796, 278520, 325995, 434660, 478126, 521592, 651990, 717189, 869320, 956252, 1195315, 1303980, 1434378, 1912504, 2390630, 2607960, 2868756, 3585945, 4781260, 5737512, 7171890, 9562520, 14343780, 28687560]

約数ペア:

[(1, 28687560), (2, 14343780), (3, 9562520), (4, 7171890), (5, 5737512), (6, 4781260), (8, 3585945), (10, 2868756), (11, 2607960), (12, 2390630), (15, 1912504), (20, 1434378), (22, 1303980), (24, 1195315), (30, 956252), (33, 869320), (40, 717189), (44, 651990), (55, 521592), (60, 478126), (66, 434660), (88, 325995), (103, 278520), (110, 260796), (120, 239063), (132, 217330), (165, 173864), (206, 139260), (211, 135960), (220, 130398), (264, 108665), (309, 92840), (330, 86932), (412, 69630), (422, 67980), (440, 65199), (515, 55704), (618, 46420), (633, 45320), (660, 43466), (824, 34815), (844, 33990), (1030, 27852), (1055, 27192), (1133, 25320), (1236, 23210), (1266, 22660), (1320, 21733), (1545, 18568), (1688, 16995), (2060, 13926), (2110, 13596), (2266, 12660), (2321, 12360), (2472, 11605), (2532, 11330), (3090, 9284), (3165, 9064), (3399, 8440), (4120, 6963), (4220, 6798), (4532, 6330), (4642, 6180), (5064, 5665)]