15551320

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2797}}^1$

素因数の和:2947

約数の個数: 32

約数和(自身を含む): 35254800

約数和(自身を除く): 19703480

約数列:

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

約数ペア:

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