128577970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{479}}^1\times {\mathrm{1579}}^1$

素因数の和:2082

約数の個数: 32

約数和(自身を含む): 245721600

約数和(自身を除く): 117143630

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 479, 958, 1579, 2395, 3158, 4790, 7895, 8143, 15790, 16286, 26843, 40715, 53686, 81430, 134215, 268430, 756341, 1512682, 3781705, 7563410, 12857797, 25715594, 64288985, 128577970]

約数ペア:

[(1, 128577970), (2, 64288985), (5, 25715594), (10, 12857797), (17, 7563410), (34, 3781705), (85, 1512682), (170, 756341), (479, 268430), (958, 134215), (1579, 81430), (2395, 53686), (3158, 40715), (4790, 26843), (7895, 16286), (8143, 15790)]