31135540

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{7823}}^1$

素因数の和:8031

約数の個数: 24

約数和(自身を含む): 65721600

約数和(自身を除く): 34586060

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 7823, 15646, 31292, 39115, 78230, 156460, 1556777, 3113554, 6227108, 7783885, 15567770, 31135540]

約数ペア:

[(1, 31135540), (2, 15567770), (4, 7783885), (5, 6227108), (10, 3113554), (20, 1556777), (199, 156460), (398, 78230), (796, 39115), (995, 31292), (1990, 15646), (3980, 7823)]