81203560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{119417}}^1$

素因数の和:119445

約数の個数: 32

約数和(自身を含む): 193457160

約数和(自身を除く): 112253600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 119417, 238834, 477668, 597085, 955336, 1194170, 2030089, 2388340, 4060178, 4776680, 8120356, 10150445, 16240712, 20300890, 40601780, 81203560]

約数ペア:

[(1, 81203560), (2, 40601780), (4, 20300890), (5, 16240712), (8, 10150445), (10, 8120356), (17, 4776680), (20, 4060178), (34, 2388340), (40, 2030089), (68, 1194170), (85, 955336), (136, 597085), (170, 477668), (340, 238834), (680, 119417)]