128455340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{887}}^1$

素因数の和:1466

約数の個数: 48

約数和(自身を含む): 291356352

約数和(自身を除く): 162901012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 557, 887, 1114, 1774, 2228, 2785, 3548, 4435, 5570, 7241, 8870, 11140, 11531, 14482, 17740, 23062, 28964, 36205, 46124, 57655, 72410, 115310, 144820, 230620, 494059, 988118, 1976236, 2470295, 4940590, 6422767, 9881180, 12845534, 25691068, 32113835, 64227670, 128455340]

約数ペア:

[(1, 128455340), (2, 64227670), (4, 32113835), (5, 25691068), (10, 12845534), (13, 9881180), (20, 6422767), (26, 4940590), (52, 2470295), (65, 1976236), (130, 988118), (260, 494059), (557, 230620), (887, 144820), (1114, 115310), (1774, 72410), (2228, 57655), (2785, 46124), (3548, 36205), (4435, 28964), (5570, 23062), (7241, 17740), (8870, 14482), (11140, 11531)]