7217420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1663}}^1$

素因数の和:1710

約数の個数: 48

約数和(自身を含む): 17891328

約数和(自身を除く): 10673908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 1663, 2170, 3326, 4340, 6652, 8315, 11641, 16630, 23282, 33260, 46564, 51553, 58205, 103106, 116410, 206212, 232820, 257765, 360871, 515530, 721742, 1031060, 1443484, 1804355, 3608710, 7217420]

約数ペア:

[(1, 7217420), (2, 3608710), (4, 1804355), (5, 1443484), (7, 1031060), (10, 721742), (14, 515530), (20, 360871), (28, 257765), (31, 232820), (35, 206212), (62, 116410), (70, 103106), (124, 58205), (140, 51553), (155, 46564), (217, 33260), (310, 23282), (434, 16630), (620, 11641), (868, 8315), (1085, 6652), (1663, 4340), (2170, 3326)]