804940420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1298291}}^1$

素因数の和:1298331

約数の個数: 24

約数和(自身を含む): 1744904448

約数和(自身を除く): 939964028

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1298291, 2596582, 5193164, 6491455, 12982910, 25965820, 40247021, 80494042, 160988084, 201235105, 402470210, 804940420]

約数ペア:

[(1, 804940420), (2, 402470210), (4, 201235105), (5, 160988084), (10, 80494042), (20, 40247021), (31, 25965820), (62, 12982910), (124, 6491455), (155, 5193164), (310, 2596582), (620, 1298291)]