203980360

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{26699}}^1$

素因数の和:26901

約数の個数: 32

約数和(自身を含む): 461376000

約数和(自身を除く): 257395640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 26699, 53398, 106796, 133495, 213592, 266990, 533980, 1067960, 5099509, 10199018, 20398036, 25497545, 40796072, 50995090, 101990180, 203980360]

約数ペア:

[(1, 203980360), (2, 101990180), (4, 50995090), (5, 40796072), (8, 25497545), (10, 20398036), (20, 10199018), (40, 5099509), (191, 1067960), (382, 533980), (764, 266990), (955, 213592), (1528, 133495), (1910, 106796), (3820, 53398), (7640, 26699)]