388828040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{313571}}^1$

素因数の和:313613

約数の個数: 32

約数和(自身を含む): 903087360

約数和(自身を除く): 514259320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 313571, 627142, 1254284, 1567855, 2508568, 3135710, 6271420, 9720701, 12542840, 19441402, 38882804, 48603505, 77765608, 97207010, 194414020, 388828040]

約数ペア:

[(1, 388828040), (2, 194414020), (4, 97207010), (5, 77765608), (8, 48603505), (10, 38882804), (20, 19441402), (31, 12542840), (40, 9720701), (62, 6271420), (124, 3135710), (155, 2508568), (248, 1567855), (310, 1254284), (620, 627142), (1240, 313571)]