18861250

素因数分解:

$2^1\times 5^4\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:292

約数の個数: 40

約数和(自身を含む): 35988480

約数和(自身を除く): 17127230

約数列:

[1, 2, 5, 10, 25, 50, 79, 125, 158, 191, 250, 382, 395, 625, 790, 955, 1250, 1910, 1975, 3950, 4775, 9550, 9875, 15089, 19750, 23875, 30178, 47750, 49375, 75445, 98750, 119375, 150890, 238750, 377225, 754450, 1886125, 3772250, 9430625, 18861250]

約数ペア:

[(1, 18861250), (2, 9430625), (5, 3772250), (10, 1886125), (25, 754450), (50, 377225), (79, 238750), (125, 150890), (158, 119375), (191, 98750), (250, 75445), (382, 49375), (395, 47750), (625, 30178), (790, 23875), (955, 19750), (1250, 15089), (1910, 9875), (1975, 9550), (3950, 4775)]