64457480

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26417}}^1$

素因数の和:26489

約数の個数: 32

約数和(自身を含む): 147412440

約数和(自身を除く): 82954960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 26417, 52834, 105668, 132085, 211336, 264170, 528340, 1056680, 1611437, 3222874, 6445748, 8057185, 12891496, 16114370, 32228740, 64457480]

約数ペア:

[(1, 64457480), (2, 32228740), (4, 16114370), (5, 12891496), (8, 8057185), (10, 6445748), (20, 3222874), (40, 1611437), (61, 1056680), (122, 528340), (244, 264170), (305, 211336), (488, 132085), (610, 105668), (1220, 52834), (2440, 26417)]