155628080

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{31891}}^1$

素因数の和:31965

約数の個数: 40

約数和(自身を含む): 367778544

約数和(自身を除く): 212150464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 31891, 63782, 127564, 159455, 255128, 318910, 510256, 637820, 1275640, 1945351, 2551280, 3890702, 7781404, 9726755, 15562808, 19453510, 31125616, 38907020, 77814040, 155628080]

約数ペア:

[(1, 155628080), (2, 77814040), (4, 38907020), (5, 31125616), (8, 19453510), (10, 15562808), (16, 9726755), (20, 7781404), (40, 3890702), (61, 2551280), (80, 1945351), (122, 1275640), (244, 637820), (305, 510256), (488, 318910), (610, 255128), (976, 159455), (1220, 127564), (2440, 63782), (4880, 31891)]