8640840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 29030400

約数和(自身を除く): 20389560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 29, 30, 39, 40, 52, 58, 60, 65, 78, 87, 104, 116, 120, 130, 145, 156, 174, 191, 195, 232, 260, 290, 312, 348, 377, 382, 390, 435, 520, 573, 580, 696, 754, 764, 780, 870, 955, 1131, 1146, 1160, 1508, 1528, 1560, 1740, 1885, 1910, 2262, 2292, 2483, 2865, 3016, 3480, 3770, 3820, 4524, 4584, 4966, 5539, 5655, 5730, 7449, 7540, 7640, 9048, 9932, 11078, 11310, 11460, 12415, 14898, 15080, 16617, 19864, 22156, 22620, 22920, 24830, 27695, 29796, 33234, 37245, 44312, 45240, 49660, 55390, 59592, 66468, 72007, 74490, 83085, 99320, 110780, 132936, 144014, 148980, 166170, 216021, 221560, 288028, 297960, 332340, 360035, 432042, 576056, 664680, 720070, 864084, 1080105, 1440140, 1728168, 2160210, 2880280, 4320420, 8640840]

約数ペア:

[(1, 8640840), (2, 4320420), (3, 2880280), (4, 2160210), (5, 1728168), (6, 1440140), (8, 1080105), (10, 864084), (12, 720070), (13, 664680), (15, 576056), (20, 432042), (24, 360035), (26, 332340), (29, 297960), (30, 288028), (39, 221560), (40, 216021), (52, 166170), (58, 148980), (60, 144014), (65, 132936), (78, 110780), (87, 99320), (104, 83085), (116, 74490), (120, 72007), (130, 66468), (145, 59592), (156, 55390), (174, 49660), (191, 45240), (195, 44312), (232, 37245), (260, 33234), (290, 29796), (312, 27695), (348, 24830), (377, 22920), (382, 22620), (390, 22156), (435, 19864), (520, 16617), (573, 15080), (580, 14898), (696, 12415), (754, 11460), (764, 11310), (780, 11078), (870, 9932), (955, 9048), (1131, 7640), (1146, 7540), (1160, 7449), (1508, 5730), (1528, 5655), (1560, 5539), (1740, 4966), (1885, 4584), (1910, 4524), (2262, 3820), (2292, 3770), (2483, 3480), (2865, 3016)]