19900630

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{139}}^2$

素因数の和:388

約数の個数: 24

約数和(自身を含む): 36430992

約数和(自身を除く): 16530362

約数列:

[1, 2, 5, 10, 103, 139, 206, 278, 515, 695, 1030, 1390, 14317, 19321, 28634, 38642, 71585, 96605, 143170, 193210, 1990063, 3980126, 9950315, 19900630]

約数ペア:

[(1, 19900630), (2, 9950315), (5, 3980126), (10, 1990063), (103, 193210), (139, 143170), (206, 96605), (278, 71585), (515, 38642), (695, 28634), (1030, 19321), (1390, 14317)]