7781180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 18041184

約数和(自身を除く): 10260004

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 313, 452, 565, 626, 1130, 1243, 1252, 1565, 2260, 2486, 3130, 3443, 4972, 6215, 6260, 6886, 12430, 13772, 17215, 24860, 34430, 35369, 68860, 70738, 141476, 176845, 353690, 389059, 707380, 778118, 1556236, 1945295, 3890590, 7781180]

約数ペア:

[(1, 7781180), (2, 3890590), (4, 1945295), (5, 1556236), (10, 778118), (11, 707380), (20, 389059), (22, 353690), (44, 176845), (55, 141476), (110, 70738), (113, 68860), (220, 35369), (226, 34430), (313, 24860), (452, 17215), (565, 13772), (626, 12430), (1130, 6886), (1243, 6260), (1252, 6215), (1565, 4972), (2260, 3443), (2486, 3130)]