21557640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1063}}^1$

素因数の和:1103

約数の個数: 96

約数和(自身を含む): 70096320

約数和(自身を除く): 48538680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 169, 195, 260, 312, 338, 390, 507, 520, 676, 780, 845, 1014, 1063, 1352, 1560, 1690, 2028, 2126, 2535, 3189, 3380, 4056, 4252, 5070, 5315, 6378, 6760, 8504, 10140, 10630, 12756, 13819, 15945, 20280, 21260, 25512, 27638, 31890, 41457, 42520, 55276, 63780, 69095, 82914, 110552, 127560, 138190, 165828, 179647, 207285, 276380, 331656, 359294, 414570, 538941, 552760, 718588, 829140, 898235, 1077882, 1437176, 1658280, 1796470, 2155764, 2694705, 3592940, 4311528, 5389410, 7185880, 10778820, 21557640]

約数ペア:

[(1, 21557640), (2, 10778820), (3, 7185880), (4, 5389410), (5, 4311528), (6, 3592940), (8, 2694705), (10, 2155764), (12, 1796470), (13, 1658280), (15, 1437176), (20, 1077882), (24, 898235), (26, 829140), (30, 718588), (39, 552760), (40, 538941), (52, 414570), (60, 359294), (65, 331656), (78, 276380), (104, 207285), (120, 179647), (130, 165828), (156, 138190), (169, 127560), (195, 110552), (260, 82914), (312, 69095), (338, 63780), (390, 55276), (507, 42520), (520, 41457), (676, 31890), (780, 27638), (845, 25512), (1014, 21260), (1063, 20280), (1352, 15945), (1560, 13819), (1690, 12756), (2028, 10630), (2126, 10140), (2535, 8504), (3189, 6760), (3380, 6378), (4056, 5315), (4252, 5070)]