15564760

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6379}}^1$

素因数の和:6451

約数の個数: 32

約数和(自身を含む): 35600400

約数和(自身を除く): 20035640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 6379, 12758, 25516, 31895, 51032, 63790, 127580, 255160, 389119, 778238, 1556476, 1945595, 3112952, 3891190, 7782380, 15564760]

約数ペア:

[(1, 15564760), (2, 7782380), (4, 3891190), (5, 3112952), (8, 1945595), (10, 1556476), (20, 778238), (40, 389119), (61, 255160), (122, 127580), (244, 63790), (305, 51032), (488, 31895), (610, 25516), (1220, 12758), (2440, 6379)]