4394440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1801}}^1$

素因数の和:1873

約数の個数: 32

約数和(自身を含む): 10055160

約数和(自身を除く): 5660720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1801, 2440, 3602, 7204, 9005, 14408, 18010, 36020, 72040, 109861, 219722, 439444, 549305, 878888, 1098610, 2197220, 4394440]

約数ペア:

[(1, 4394440), (2, 2197220), (4, 1098610), (5, 878888), (8, 549305), (10, 439444), (20, 219722), (40, 109861), (61, 72040), (122, 36020), (244, 18010), (305, 14408), (488, 9005), (610, 7204), (1220, 3602), (1801, 2440)]