78150820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3259}}^1$

素因数の和:3388

約数の個数: 48

約数和(自身を含む): 180734400

約数和(自身を除く): 102583580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1090, 1199, 2180, 2398, 3259, 4796, 5995, 6518, 11990, 13036, 16295, 23980, 32590, 35849, 65180, 71698, 143396, 179245, 355231, 358490, 710462, 716980, 1420924, 1776155, 3552310, 3907541, 7104620, 7815082, 15630164, 19537705, 39075410, 78150820]

約数ペア:

[(1, 78150820), (2, 39075410), (4, 19537705), (5, 15630164), (10, 7815082), (11, 7104620), (20, 3907541), (22, 3552310), (44, 1776155), (55, 1420924), (109, 716980), (110, 710462), (218, 358490), (220, 355231), (436, 179245), (545, 143396), (1090, 71698), (1199, 65180), (2180, 35849), (2398, 32590), (3259, 23980), (4796, 16295), (5995, 13036), (6518, 11990)]