221820625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1187}}^1$

素因数の和:1243

約数の個数: 40

約数和(自身を含む): 311750208

約数和(自身を除く): 89929583

約数列:

[1, 5, 13, 23, 25, 65, 115, 125, 299, 325, 575, 625, 1187, 1495, 1625, 2875, 5935, 7475, 8125, 14375, 15431, 27301, 29675, 37375, 77155, 136505, 148375, 186875, 354913, 385775, 682525, 741875, 1774565, 1928875, 3412625, 8872825, 9644375, 17063125, 44364125, 221820625]

約数ペア:

[(1, 221820625), (5, 44364125), (13, 17063125), (23, 9644375), (25, 8872825), (65, 3412625), (115, 1928875), (125, 1774565), (299, 741875), (325, 682525), (575, 385775), (625, 354913), (1187, 186875), (1495, 148375), (1625, 136505), (2875, 77155), (5935, 37375), (7475, 29675), (8125, 27301), (14375, 15431)]