12539500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:859

約数の個数: 48

約数和(自身を含む): 28304640

約数和(自身を除く): 15765140

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 775, 809, 1550, 1618, 3100, 3236, 3875, 4045, 7750, 8090, 15500, 16180, 20225, 25079, 40450, 50158, 80900, 100316, 101125, 125395, 202250, 250790, 404500, 501580, 626975, 1253950, 2507900, 3134875, 6269750, 12539500]

約数ペア:

[(1, 12539500), (2, 6269750), (4, 3134875), (5, 2507900), (10, 1253950), (20, 626975), (25, 501580), (31, 404500), (50, 250790), (62, 202250), (100, 125395), (124, 101125), (125, 100316), (155, 80900), (250, 50158), (310, 40450), (500, 25079), (620, 20225), (775, 16180), (809, 15500), (1550, 8090), (1618, 7750), (3100, 4045), (3236, 3875)]