18856340

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{17789}}^1$

素因数の和:17851

約数の個数: 24

約数和(自身を含む): 40347720

約数和(自身を除く): 21491380

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 17789, 35578, 71156, 88945, 177890, 355780, 942817, 1885634, 3771268, 4714085, 9428170, 18856340]

約数ペア:

[(1, 18856340), (2, 9428170), (4, 4714085), (5, 3771268), (10, 1885634), (20, 942817), (53, 355780), (106, 177890), (212, 88945), (265, 71156), (530, 35578), (1060, 17789)]