18998590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2477}}^1$

素因数の和:2556

約数の個数: 32

約数和(自身を含む): 37467360

約数和(自身を除く): 18468770

約数列:

[1, 2, 5, 10, 13, 26, 59, 65, 118, 130, 295, 590, 767, 1534, 2477, 3835, 4954, 7670, 12385, 24770, 32201, 64402, 146143, 161005, 292286, 322010, 730715, 1461430, 1899859, 3799718, 9499295, 18998590]

約数ペア:

[(1, 18998590), (2, 9499295), (5, 3799718), (10, 1899859), (13, 1461430), (26, 730715), (59, 322010), (65, 292286), (118, 161005), (130, 146143), (295, 64402), (590, 32201), (767, 24770), (1534, 12385), (2477, 7670), (3835, 4954)]