28788290

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^2\times {\mathrm{149}}^1$

素因数の和:434

約数の個数: 24

約数和(自身を含む): 52544700

約数和(自身を除く): 23756410

約数列:

[1, 2, 5, 10, 139, 149, 278, 298, 695, 745, 1390, 1490, 19321, 20711, 38642, 41422, 96605, 103555, 193210, 207110, 2878829, 5757658, 14394145, 28788290]

約数ペア:

[(1, 28788290), (2, 14394145), (5, 5757658), (10, 2878829), (139, 207110), (149, 193210), (278, 103555), (298, 96605), (695, 41422), (745, 38642), (1390, 20711), (1490, 19321)]