398437730

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1285283}}^1$

素因数の和:1285321

約数の個数: 16

約数和(自身を含む): 740323584

約数和(自身を除く): 341885854

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 1285283, 2570566, 6426415, 12852830, 39843773, 79687546, 199218865, 398437730]

約数ペア:

[(1, 398437730), (2, 199218865), (5, 79687546), (10, 39843773), (31, 12852830), (62, 6426415), (155, 2570566), (310, 1285283)]