51384140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{401}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 111434400

約数和(自身を除く): 60050260

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 149, 172, 215, 298, 401, 430, 596, 745, 802, 860, 1490, 1604, 2005, 2980, 4010, 6407, 8020, 12814, 17243, 25628, 32035, 34486, 59749, 64070, 68972, 86215, 119498, 128140, 172430, 238996, 298745, 344860, 597490, 1194980, 2569207, 5138414, 10276828, 12846035, 25692070, 51384140]

約数ペア:

[(1, 51384140), (2, 25692070), (4, 12846035), (5, 10276828), (10, 5138414), (20, 2569207), (43, 1194980), (86, 597490), (149, 344860), (172, 298745), (215, 238996), (298, 172430), (401, 128140), (430, 119498), (596, 86215), (745, 68972), (802, 64070), (860, 59749), (1490, 34486), (1604, 32035), (2005, 25628), (2980, 17243), (4010, 12814), (6407, 8020)]