998109820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{911}}^1\times {\mathrm{1889}}^1$

素因数の和:2838

約数の個数: 48

約数和(自身を含む): 2171836800

約数和(自身を除く): 1173726980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 911, 1822, 1889, 3644, 3778, 4555, 7556, 9110, 9445, 18220, 18890, 26419, 37780, 52838, 54781, 105676, 109562, 132095, 219124, 264190, 273905, 528380, 547810, 1095620, 1720879, 3441758, 6883516, 8604395, 17208790, 34417580, 49905491, 99810982, 199621964, 249527455, 499054910, 998109820]

約数ペア:

[(1, 998109820), (2, 499054910), (4, 249527455), (5, 199621964), (10, 99810982), (20, 49905491), (29, 34417580), (58, 17208790), (116, 8604395), (145, 6883516), (290, 3441758), (580, 1720879), (911, 1095620), (1822, 547810), (1889, 528380), (3644, 273905), (3778, 264190), (4555, 219124), (7556, 132095), (9110, 109562), (9445, 105676), (18220, 54781), (18890, 52838), (26419, 37780)]