28455460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{613}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 65604672

約数和(自身を除く): 37149212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 211, 220, 422, 613, 844, 1055, 1226, 2110, 2321, 2452, 3065, 4220, 4642, 6130, 6743, 9284, 11605, 12260, 13486, 23210, 26972, 33715, 46420, 67430, 129343, 134860, 258686, 517372, 646715, 1293430, 1422773, 2586860, 2845546, 5691092, 7113865, 14227730, 28455460]

約数ペア:

[(1, 28455460), (2, 14227730), (4, 7113865), (5, 5691092), (10, 2845546), (11, 2586860), (20, 1422773), (22, 1293430), (44, 646715), (55, 517372), (110, 258686), (211, 134860), (220, 129343), (422, 67430), (613, 46420), (844, 33715), (1055, 26972), (1226, 23210), (2110, 13486), (2321, 12260), (2452, 11605), (3065, 9284), (4220, 6743), (4642, 6130)]