4038040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{643}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 9157680

約数和(自身を除く): 5119640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 643, 785, 1256, 1286, 1570, 2572, 3140, 3215, 5144, 6280, 6430, 12860, 25720, 100951, 201902, 403804, 504755, 807608, 1009510, 2019020, 4038040]

約数ペア:

[(1, 4038040), (2, 2019020), (4, 1009510), (5, 807608), (8, 504755), (10, 403804), (20, 201902), (40, 100951), (157, 25720), (314, 12860), (628, 6430), (643, 6280), (785, 5144), (1256, 3215), (1286, 3140), (1570, 2572)]