617780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 1451520

約数和(自身を除く): 833740

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 79, 85, 92, 115, 158, 170, 230, 316, 340, 391, 395, 460, 782, 790, 1343, 1564, 1580, 1817, 1955, 2686, 3634, 3910, 5372, 6715, 7268, 7820, 9085, 13430, 18170, 26860, 30889, 36340, 61778, 123556, 154445, 308890, 617780]

約数ペア:

[(1, 617780), (2, 308890), (4, 154445), (5, 123556), (10, 61778), (17, 36340), (20, 30889), (23, 26860), (34, 18170), (46, 13430), (68, 9085), (79, 7820), (85, 7268), (92, 6715), (115, 5372), (158, 3910), (170, 3634), (230, 2686), (316, 1955), (340, 1817), (391, 1580), (395, 1564), (460, 1343), (782, 790)]