12991480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10477}}^1$

素因数の和:10519

約数の個数: 32

約数和(自身を含む): 30176640

約数和(自身を除く): 17185160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 10477, 20954, 41908, 52385, 83816, 104770, 209540, 324787, 419080, 649574, 1299148, 1623935, 2598296, 3247870, 6495740, 12991480]

約数ペア:

[(1, 12991480), (2, 6495740), (4, 3247870), (5, 2598296), (8, 1623935), (10, 1299148), (20, 649574), (31, 419080), (40, 324787), (62, 209540), (124, 104770), (155, 83816), (248, 52385), (310, 41908), (620, 20954), (1240, 10477)]