7420040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3041}}^1$

素因数の和:3113

約数の個数: 32

約数和(自身を含む): 16974360

約数和(自身を除く): 9554320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3041, 6082, 12164, 15205, 24328, 30410, 60820, 121640, 185501, 371002, 742004, 927505, 1484008, 1855010, 3710020, 7420040]

約数ペア:

[(1, 7420040), (2, 3710020), (4, 1855010), (5, 1484008), (8, 927505), (10, 742004), (20, 371002), (40, 185501), (61, 121640), (122, 60820), (244, 30410), (305, 24328), (488, 15205), (610, 12164), (1220, 6082), (2440, 3041)]