203964380

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{77849}}^1$

素因数の和:77989

約数の個数: 24

約数和(自身を含む): 431600400

約数和(自身を除く): 227636020

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 77849, 155698, 311396, 389245, 778490, 1556980, 10198219, 20396438, 40792876, 50991095, 101982190, 203964380]

約数ペア:

[(1, 203964380), (2, 101982190), (4, 50991095), (5, 40792876), (10, 20396438), (20, 10198219), (131, 1556980), (262, 778490), (524, 389245), (655, 311396), (1310, 155698), (2620, 77849)]