20751430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{569}}^1$

素因数の和:1104

約数の個数: 32

約数和(自身を含む): 42845760

約数和(自身を除く): 22094330

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 521, 569, 1042, 1138, 2605, 2845, 3647, 3983, 5210, 5690, 7294, 7966, 18235, 19915, 36470, 39830, 296449, 592898, 1482245, 2075143, 2964490, 4150286, 10375715, 20751430]

約数ペア:

[(1, 20751430), (2, 10375715), (5, 4150286), (7, 2964490), (10, 2075143), (14, 1482245), (35, 592898), (70, 296449), (521, 39830), (569, 36470), (1042, 19915), (1138, 18235), (2605, 7966), (2845, 7294), (3647, 5690), (3983, 5210)]