25287640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{90313}}^1$

素因数の和:90331

約数の個数: 32

約数和(自身を含む): 65026080

約数和(自身を除く): 39738440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 90313, 180626, 361252, 451565, 632191, 722504, 903130, 1264382, 1806260, 2528764, 3160955, 3612520, 5057528, 6321910, 12643820, 25287640]

約数ペア:

[(1, 25287640), (2, 12643820), (4, 6321910), (5, 5057528), (7, 3612520), (8, 3160955), (10, 2528764), (14, 1806260), (20, 1264382), (28, 903130), (35, 722504), (40, 632191), (56, 451565), (70, 361252), (140, 180626), (280, 90313)]