81547750

素因数分解:

$2^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{4129}}^1$

素因数の和:4225

約数の個数: 32

約数和(自身を含む): 154627200

約数和(自身を除く): 73079450

約数列:

[1, 2, 5, 10, 25, 50, 79, 125, 158, 250, 395, 790, 1975, 3950, 4129, 8258, 9875, 19750, 20645, 41290, 103225, 206450, 326191, 516125, 652382, 1032250, 1630955, 3261910, 8154775, 16309550, 40773875, 81547750]

約数ペア:

[(1, 81547750), (2, 40773875), (5, 16309550), (10, 8154775), (25, 3261910), (50, 1630955), (79, 1032250), (125, 652382), (158, 516125), (250, 326191), (395, 206450), (790, 103225), (1975, 41290), (3950, 20645), (4129, 19750), (8258, 9875)]