8423740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 19262880

約数和(自身を除く): 10839140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 179, 181, 260, 358, 362, 716, 724, 895, 905, 1790, 1810, 2327, 2353, 3580, 3620, 4654, 4706, 9308, 9412, 11635, 11765, 23270, 23530, 32399, 46540, 47060, 64798, 129596, 161995, 323990, 421187, 647980, 842374, 1684748, 2105935, 4211870, 8423740]

約数ペア:

[(1, 8423740), (2, 4211870), (4, 2105935), (5, 1684748), (10, 842374), (13, 647980), (20, 421187), (26, 323990), (52, 161995), (65, 129596), (130, 64798), (179, 47060), (181, 46540), (260, 32399), (358, 23530), (362, 23270), (716, 11765), (724, 11635), (895, 9412), (905, 9308), (1790, 4706), (1810, 4654), (2327, 3620), (2353, 3580)]