389715308

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{72223}}^1$

素因数の和:72317

約数の個数: 24

約数和(自身を含む): 728017920

約数和(自身を除く): 338302612

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 5396, 72223, 144446, 288892, 1372237, 2744474, 5127833, 5488948, 10255666, 20511332, 97428827, 194857654, 389715308]

約数ペア:

[(1, 389715308), (2, 194857654), (4, 97428827), (19, 20511332), (38, 10255666), (71, 5488948), (76, 5127833), (142, 2744474), (284, 1372237), (1349, 288892), (2698, 144446), (5396, 72223)]