15984440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6551}}^1$

素因数の和:6623

約数の個数: 32

約数和(自身を含む): 36560160

約数和(自身を除く): 20575720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 6551, 13102, 26204, 32755, 52408, 65510, 131020, 262040, 399611, 799222, 1598444, 1998055, 3196888, 3996110, 7992220, 15984440]

約数ペア:

[(1, 15984440), (2, 7992220), (4, 3996110), (5, 3196888), (8, 1998055), (10, 1598444), (20, 799222), (40, 399611), (61, 262040), (122, 131020), (244, 65510), (305, 52408), (488, 32755), (610, 26204), (1220, 13102), (2440, 6551)]