203419420

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{77641}}^1$

素因数の和:77781

約数の個数: 24

約数和(自身を含む): 430447248

約数和(自身を除く): 227027828

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 77641, 155282, 310564, 388205, 776410, 1552820, 10170971, 20341942, 40683884, 50854855, 101709710, 203419420]

約数ペア:

[(1, 203419420), (2, 101709710), (4, 50854855), (5, 40683884), (10, 20341942), (20, 10170971), (131, 1552820), (262, 776410), (524, 388205), (655, 310564), (1310, 155282), (2620, 77641)]