1640200090

素因数分解:

$2^1\times 5^1\times {\mathrm{5581}}^1\times {\mathrm{29389}}^1$

素因数の和:34977

約数の個数: 16

約数和(自身を含む): 2952989640

約数和(自身を除く): 1312789550

約数列:

[1, 2, 5, 10, 5581, 11162, 27905, 29389, 55810, 58778, 146945, 293890, 164020009, 328040018, 820100045, 1640200090]

約数ペア:

[(1, 1640200090), (2, 820100045), (5, 328040018), (10, 164020009), (5581, 293890), (11162, 146945), (27905, 58778), (29389, 55810)]