1561645

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:212

約数の個数: 16

約数和(自身を含む): 1959552

約数和(自身を除く): 397907

約数列:

[1, 5, 53, 71, 83, 265, 355, 415, 3763, 4399, 5893, 18815, 21995, 29465, 312329, 1561645]

約数ペア:

[(1, 1561645), (5, 312329), (53, 29465), (71, 21995), (83, 18815), (265, 5893), (355, 4399), (415, 3763)]