19536820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31511}}^1$

素因数の和:31551

約数の個数: 24

約数和(自身を含む): 42352128

約数和(自身を除く): 22815308

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 31511, 63022, 126044, 157555, 315110, 630220, 976841, 1953682, 3907364, 4884205, 9768410, 19536820]

約数ペア:

[(1, 19536820), (2, 9768410), (4, 4884205), (5, 3907364), (10, 1953682), (20, 976841), (31, 630220), (62, 315110), (124, 157555), (155, 126044), (310, 63022), (620, 31511)]