806620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1301}}^1$

素因数の和:1341

約数の個数: 24

約数和(自身を含む): 1749888

約数和(自身を除く): 943268

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1301, 2602, 5204, 6505, 13010, 26020, 40331, 80662, 161324, 201655, 403310, 806620]

約数ペア:

[(1, 806620), (2, 403310), (4, 201655), (5, 161324), (10, 80662), (20, 40331), (31, 26020), (62, 13010), (124, 6505), (155, 5204), (310, 2602), (620, 1301)]