12865450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19793}}^1$

素因数の和:19818

約数の個数: 24

約数和(自身を含む): 25771788

約数和(自身を除く): 12906338

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 19793, 39586, 98965, 197930, 257309, 494825, 514618, 989650, 1286545, 2573090, 6432725, 12865450]

約数ペア:

[(1, 12865450), (2, 6432725), (5, 2573090), (10, 1286545), (13, 989650), (25, 514618), (26, 494825), (50, 257309), (65, 197930), (130, 98965), (325, 39586), (650, 19793)]