1640390090

素因数分解:

$2^1\times 5^1\times {\mathrm{1823}}^1\times {\mathrm{89983}}^1$

素因数の和:91813

約数の個数: 16

約数和(自身を含む): 2954354688

約数和(自身を除く): 1313964598

約数列:

[1, 2, 5, 10, 1823, 3646, 9115, 18230, 89983, 179966, 449915, 899830, 164039009, 328078018, 820195045, 1640390090]

約数ペア:

[(1, 1640390090), (2, 820195045), (5, 328078018), (10, 164039009), (1823, 899830), (3646, 449915), (9115, 179966), (18230, 89983)]