20892340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1889}}^1$

素因数の和:1984

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 29910860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 1889, 2212, 2765, 3778, 5530, 7556, 9445, 11060, 13223, 18890, 26446, 37780, 52892, 66115, 132230, 149231, 264460, 298462, 596924, 746155, 1044617, 1492310, 2089234, 2984620, 4178468, 5223085, 10446170, 20892340]

約数ペア:

[(1, 20892340), (2, 10446170), (4, 5223085), (5, 4178468), (7, 2984620), (10, 2089234), (14, 1492310), (20, 1044617), (28, 746155), (35, 596924), (70, 298462), (79, 264460), (140, 149231), (158, 132230), (316, 66115), (395, 52892), (553, 37780), (790, 26446), (1106, 18890), (1580, 13223), (1889, 11060), (2212, 9445), (2765, 7556), (3778, 5530)]