321968.0000000

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:385

約数の個数: 40

約数和(自身を含む): 6249600

約数和(自身を除く): 3591440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 223, 298, 446, 596, 745, 892, 1115, 1192, 1490, 1784, 2230, 2384, 2980, 3568, 4460, 5960, 8920, 11920, 17840, 33227, 66454, 132908, 166135, 265816, 332270, 531632, 664540, 1329080, 2658160]

約数ペア:

[(1, 2658160), (2, 1329080), (4, 664540), (5, 531632), (8, 332270), (10, 265816), (16, 166135), (20, 132908), (40, 66454), (80, 33227), (149, 17840), (223, 11920), (298, 8920), (446, 5960), (596, 4460), (745, 3568), (892, 2980), (1115, 2384), (1192, 2230), (1490, 1784)]