1279162820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1061}}^1\times {\mathrm{4637}}^1$

素因数の和:5720

約数の個数: 48

約数和(自身を含む): 2896226928

約数和(自身を除く): 1617064108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1061, 2122, 4244, 4637, 5305, 9274, 10610, 13793, 18548, 21220, 23185, 27586, 46370, 55172, 60281, 68965, 92740, 120562, 137930, 241124, 275860, 301405, 602810, 1205620, 4919857, 9839714, 19679428, 24599285, 49198570, 63958141, 98397140, 127916282, 255832564, 319790705, 639581410, 1279162820]

約数ペア:

[(1, 1279162820), (2, 639581410), (4, 319790705), (5, 255832564), (10, 127916282), (13, 98397140), (20, 63958141), (26, 49198570), (52, 24599285), (65, 19679428), (130, 9839714), (260, 4919857), (1061, 1205620), (2122, 602810), (4244, 301405), (4637, 275860), (5305, 241124), (9274, 137930), (10610, 120562), (13793, 92740), (18548, 68965), (21220, 60281), (23185, 55172), (27586, 46370)]