1621820

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{977}}^1$

素因数の和:1069

約数の個数: 24

約数和(自身を含む): 3450384

約数和(自身を除く): 1828564

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 977, 1660, 1954, 3908, 4885, 9770, 19540, 81091, 162182, 324364, 405455, 810910, 1621820]

約数ペア:

[(1, 1621820), (2, 810910), (4, 405455), (5, 324364), (10, 162182), (20, 81091), (83, 19540), (166, 9770), (332, 4885), (415, 3908), (830, 1954), (977, 1660)]