20265980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144757}}^1$

素因数の和:144773

約数の個数: 24

約数和(自身を含む): 48638688

約数和(自身を除く): 28372708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144757, 289514, 579028, 723785, 1013299, 1447570, 2026598, 2895140, 4053196, 5066495, 10132990, 20265980]

約数ペア:

[(1, 20265980), (2, 10132990), (4, 5066495), (5, 4053196), (7, 2895140), (10, 2026598), (14, 1447570), (20, 1013299), (28, 723785), (35, 579028), (70, 289514), (140, 144757)]