64052440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26251}}^1$

素因数の和:26323

約数の個数: 32

約数和(自身を含む): 146486160

約数和(自身を除く): 82433720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 26251, 52502, 105004, 131255, 210008, 262510, 525020, 1050040, 1601311, 3202622, 6405244, 8006555, 12810488, 16013110, 32026220, 64052440]

約数ペア:

[(1, 64052440), (2, 32026220), (4, 16013110), (5, 12810488), (8, 8006555), (10, 6405244), (20, 3202622), (40, 1601311), (61, 1050040), (122, 525020), (244, 262510), (305, 210008), (488, 131255), (610, 105004), (1220, 52502), (2440, 26251)]