2507900

素因数分解:

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

素因数の和:854

約数の個数: 36

約数和(自身を含む): 5624640

約数和(自身を除く): 3116740

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 809, 1550, 1618, 3100, 3236, 4045, 8090, 16180, 20225, 25079, 40450, 50158, 80900, 100316, 125395, 250790, 501580, 626975, 1253950, 2507900]

約数ペア:

[(1, 2507900), (2, 1253950), (4, 626975), (5, 501580), (10, 250790), (20, 125395), (25, 100316), (31, 80900), (50, 50158), (62, 40450), (100, 25079), (124, 20225), (155, 16180), (310, 8090), (620, 4045), (775, 3236), (809, 3100), (1550, 1618)]