67817620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2393}}^1$

素因数の和:2524

約数の個数: 48

約数和(自身を含む): 154843920

約数和(自身を除く): 87026300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2393, 2834, 4786, 5668, 7085, 9572, 11965, 14170, 23930, 28340, 31109, 47860, 62218, 124436, 155545, 260837, 311090, 521674, 622180, 1043348, 1304185, 2608370, 3390881, 5216740, 6781762, 13563524, 16954405, 33908810, 67817620]

約数ペア:

[(1, 67817620), (2, 33908810), (4, 16954405), (5, 13563524), (10, 6781762), (13, 5216740), (20, 3390881), (26, 2608370), (52, 1304185), (65, 1043348), (109, 622180), (130, 521674), (218, 311090), (260, 260837), (436, 155545), (545, 124436), (1090, 62218), (1417, 47860), (2180, 31109), (2393, 28340), (2834, 23930), (4786, 14170), (5668, 11965), (7085, 9572)]