15620440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 38776320

約数和(自身を除く): 23155880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 131, 220, 262, 271, 440, 524, 542, 655, 1048, 1084, 1310, 1355, 1441, 2168, 2620, 2710, 2882, 2981, 5240, 5420, 5764, 5962, 7205, 10840, 11528, 11924, 14410, 14905, 23848, 28820, 29810, 35501, 57640, 59620, 71002, 119240, 142004, 177505, 284008, 355010, 390511, 710020, 781022, 1420040, 1562044, 1952555, 3124088, 3905110, 7810220, 15620440]

約数ペア:

[(1, 15620440), (2, 7810220), (4, 3905110), (5, 3124088), (8, 1952555), (10, 1562044), (11, 1420040), (20, 781022), (22, 710020), (40, 390511), (44, 355010), (55, 284008), (88, 177505), (110, 142004), (131, 119240), (220, 71002), (262, 59620), (271, 57640), (440, 35501), (524, 29810), (542, 28820), (655, 23848), (1048, 14905), (1084, 14410), (1310, 11924), (1355, 11528), (1441, 10840), (2168, 7205), (2620, 5962), (2710, 5764), (2882, 5420), (2981, 5240)]