31585640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{373}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 74725200

約数和(自身を除く): 43139560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 73, 116, 145, 146, 232, 290, 292, 365, 373, 580, 584, 730, 746, 1160, 1460, 1492, 1865, 2117, 2920, 2984, 3730, 4234, 7460, 8468, 10585, 10817, 14920, 16936, 21170, 21634, 27229, 42340, 43268, 54085, 54458, 84680, 86536, 108170, 108916, 136145, 216340, 217832, 272290, 432680, 544580, 789641, 1089160, 1579282, 3158564, 3948205, 6317128, 7896410, 15792820, 31585640]

約数ペア:

[(1, 31585640), (2, 15792820), (4, 7896410), (5, 6317128), (8, 3948205), (10, 3158564), (20, 1579282), (29, 1089160), (40, 789641), (58, 544580), (73, 432680), (116, 272290), (145, 217832), (146, 216340), (232, 136145), (290, 108916), (292, 108170), (365, 86536), (373, 84680), (580, 54458), (584, 54085), (730, 43268), (746, 42340), (1160, 27229), (1460, 21634), (1492, 21170), (1865, 16936), (2117, 14920), (2920, 10817), (2984, 10585), (3730, 8468), (4234, 7460)]