90721160

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{42793}}^1$

素因数の和:42857

約数の個数: 32

約数和(自身を含む): 207978840

約数和(自身を除く): 117257680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 42793, 85586, 171172, 213965, 342344, 427930, 855860, 1711720, 2268029, 4536058, 9072116, 11340145, 18144232, 22680290, 45360580, 90721160]

約数ペア:

[(1, 90721160), (2, 45360580), (4, 22680290), (5, 18144232), (8, 11340145), (10, 9072116), (20, 4536058), (40, 2268029), (53, 1711720), (106, 855860), (212, 427930), (265, 342344), (424, 213965), (530, 171172), (1060, 85586), (2120, 42793)]