203408020

素因数分解:

$2^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{12923}}^1$

素因数の和:13719

約数の個数: 24

約数和(自身を含む): 427732704

約数和(自身を除く): 224324684

約数列:

[1, 2, 4, 5, 10, 20, 787, 1574, 3148, 3935, 7870, 12923, 15740, 25846, 51692, 64615, 129230, 258460, 10170401, 20340802, 40681604, 50852005, 101704010, 203408020]

約数ペア:

[(1, 203408020), (2, 101704010), (4, 50852005), (5, 40681604), (10, 20340802), (20, 10170401), (787, 258460), (1574, 129230), (3148, 64615), (3935, 51692), (7870, 25846), (12923, 15740)]