805687490

素因数分解:

$2^1\times 5^1\times {\mathrm{20107}}^1\times {\mathrm{4007}}^1$

素因数の和:24121

約数の個数: 16

約数和(自身を含む): 1450671552

約数和(自身を除く): 644984062

約数列:

[1, 2, 5, 10, 4007, 8014, 20035, 20107, 40070, 40214, 100535, 201070, 80568749, 161137498, 402843745, 805687490]

約数ペア:

[(1, 805687490), (2, 402843745), (5, 161137498), (10, 80568749), (4007, 201070), (8014, 100535), (20035, 40214), (20107, 40070)]