218845040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{143977}}^1$

素因数の和:144009

約数の個数: 40

約数和(自身を含む): 535598160

約数和(自身を除く): 316753120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 143977, 287954, 575908, 719885, 1151816, 1439770, 2303632, 2735563, 2879540, 5471126, 5759080, 10942252, 11518160, 13677815, 21884504, 27355630, 43769008, 54711260, 109422520, 218845040]

約数ペア:

[(1, 218845040), (2, 109422520), (4, 54711260), (5, 43769008), (8, 27355630), (10, 21884504), (16, 13677815), (19, 11518160), (20, 10942252), (38, 5759080), (40, 5471126), (76, 2879540), (80, 2735563), (95, 2303632), (152, 1439770), (190, 1151816), (304, 719885), (380, 575908), (760, 287954), (1520, 143977)]