388718980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1495073}}^1$

素因数の和:1495095

約数の個数: 24

約数和(自身を含む): 879103512

約数和(自身を除く): 490384532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1495073, 2990146, 5980292, 7475365, 14950730, 19435949, 29901460, 38871898, 77743796, 97179745, 194359490, 388718980]

約数ペア:

[(1, 388718980), (2, 194359490), (4, 97179745), (5, 77743796), (10, 38871898), (13, 29901460), (20, 19435949), (26, 14950730), (52, 7475365), (65, 5980292), (130, 2990146), (260, 1495073)]