128550500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19777}}^1$

素因数の和:19809

約数の個数: 48

約数和(自身を含む): 302366064

約数和(自身を除く): 173815564

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 6500, 19777, 39554, 79108, 98885, 197770, 257101, 395540, 494425, 514202, 988850, 1028404, 1285505, 1977700, 2472125, 2571010, 4944250, 5142020, 6427525, 9888500, 12855050, 25710100, 32137625, 64275250, 128550500]

約数ペア:

[(1, 128550500), (2, 64275250), (4, 32137625), (5, 25710100), (10, 12855050), (13, 9888500), (20, 6427525), (25, 5142020), (26, 4944250), (50, 2571010), (52, 2472125), (65, 1977700), (100, 1285505), (125, 1028404), (130, 988850), (250, 514202), (260, 494425), (325, 395540), (500, 257101), (650, 197770), (1300, 98885), (1625, 79108), (3250, 39554), (6500, 19777)]