20913100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16087}}^1$

素因数の和:16114

約数の個数: 36

約数和(自身を含む): 48875344

約数和(自身を除く): 27962244

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16087, 32174, 64348, 80435, 160870, 209131, 321740, 402175, 418262, 804350, 836524, 1045655, 1608700, 2091310, 4182620, 5228275, 10456550, 20913100]

約数ペア:

[(1, 20913100), (2, 10456550), (4, 5228275), (5, 4182620), (10, 2091310), (13, 1608700), (20, 1045655), (25, 836524), (26, 804350), (50, 418262), (52, 402175), (65, 321740), (100, 209131), (130, 160870), (260, 80435), (325, 64348), (650, 32174), (1300, 16087)]