328381640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{154897}}^1$

素因数の和:154961

約数の個数: 32

約数和(自身を含む): 752804280

約数和(自身を除く): 424422640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 154897, 309794, 619588, 774485, 1239176, 1548970, 3097940, 6195880, 8209541, 16419082, 32838164, 41047705, 65676328, 82095410, 164190820, 328381640]

約数ペア:

[(1, 328381640), (2, 164190820), (4, 82095410), (5, 65676328), (8, 41047705), (10, 32838164), (20, 16419082), (40, 8209541), (53, 6195880), (106, 3097940), (212, 1548970), (265, 1239176), (424, 774485), (530, 619588), (1060, 309794), (2120, 154897)]