261750250

素因数分解:

$2^1\times 5^3\times {\mathrm{811}}^1\times {\mathrm{1291}}^1$

素因数の和:2119

約数の個数: 32

約数和(自身を含む): 490980672

約数和(自身を除く): 229230422

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 811, 1291, 1622, 2582, 4055, 6455, 8110, 12910, 20275, 32275, 40550, 64550, 101375, 161375, 202750, 322750, 1047001, 2094002, 5235005, 10470010, 26175025, 52350050, 130875125, 261750250]

約数ペア:

[(1, 261750250), (2, 130875125), (5, 52350050), (10, 26175025), (25, 10470010), (50, 5235005), (125, 2094002), (250, 1047001), (811, 322750), (1291, 202750), (1622, 161375), (2582, 101375), (4055, 64550), (6455, 40550), (8110, 32275), (12910, 20275)]