285908090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{20177}}^1$

素因数の和:20306

約数の個数: 32

約数和(自身を含む): 559334160

約数和(自身を除く): 273426070

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 2834, 7085, 14170, 20177, 40354, 100885, 201770, 262301, 524602, 1311505, 2199293, 2623010, 4398586, 10996465, 21992930, 28590809, 57181618, 142954045, 285908090]

約数ペア:

[(1, 285908090), (2, 142954045), (5, 57181618), (10, 28590809), (13, 21992930), (26, 10996465), (65, 4398586), (109, 2623010), (130, 2199293), (218, 1311505), (545, 524602), (1090, 262301), (1417, 201770), (2834, 100885), (7085, 40354), (14170, 20177)]