28157740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2927}}^1$

素因数の和:2986

約数の個数: 48

約数和(自身を含む): 65423232

約数和(自身を除く): 37265492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 2927, 4810, 5854, 9620, 11708, 14635, 29270, 38051, 58540, 76102, 108299, 152204, 190255, 216598, 380510, 433196, 541495, 761020, 1082990, 1407887, 2165980, 2815774, 5631548, 7039435, 14078870, 28157740]

約数ペア:

[(1, 28157740), (2, 14078870), (4, 7039435), (5, 5631548), (10, 2815774), (13, 2165980), (20, 1407887), (26, 1082990), (37, 761020), (52, 541495), (65, 433196), (74, 380510), (130, 216598), (148, 190255), (185, 152204), (260, 108299), (370, 76102), (481, 58540), (740, 38051), (962, 29270), (1924, 14635), (2405, 11708), (2927, 9620), (4810, 5854)]