31102640

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2797}}^1$

素因数の和:2949

約数の個数: 40

約数和(自身を含む): 72859920

約数和(自身を除く): 41757280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 2797, 5560, 5594, 11120, 11188, 13985, 22376, 27970, 44752, 55940, 111880, 223760, 388783, 777566, 1555132, 1943915, 3110264, 3887830, 6220528, 7775660, 15551320, 31102640]

約数ペア:

[(1, 31102640), (2, 15551320), (4, 7775660), (5, 6220528), (8, 3887830), (10, 3110264), (16, 1943915), (20, 1555132), (40, 777566), (80, 388783), (139, 223760), (278, 111880), (556, 55940), (695, 44752), (1112, 27970), (1390, 22376), (2224, 13985), (2780, 11188), (2797, 11120), (5560, 5594)]