18811690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{463}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 36080640

約数和(自身を除く): 17268950

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 239, 463, 478, 926, 1195, 2315, 2390, 4063, 4630, 7871, 8126, 15742, 20315, 39355, 40630, 78710, 110657, 221314, 553285, 1106570, 1881169, 3762338, 9405845, 18811690]

約数ペア:

[(1, 18811690), (2, 9405845), (5, 3762338), (10, 1881169), (17, 1106570), (34, 553285), (85, 221314), (170, 110657), (239, 78710), (463, 40630), (478, 39355), (926, 20315), (1195, 15742), (2315, 8126), (2390, 7871), (4063, 4630)]