19305625

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 40

約数和(自身を含む): 26991360

約数和(自身を除く): 7685735

約数列:

[1, 5, 17, 23, 25, 79, 85, 115, 125, 391, 395, 425, 575, 625, 1343, 1817, 1955, 1975, 2125, 2875, 6715, 9085, 9775, 9875, 10625, 14375, 30889, 33575, 45425, 48875, 49375, 154445, 167875, 227125, 244375, 772225, 839375, 1135625, 3861125, 19305625]

約数ペア:

[(1, 19305625), (5, 3861125), (17, 1135625), (23, 839375), (25, 772225), (79, 244375), (85, 227125), (115, 167875), (125, 154445), (391, 49375), (395, 48875), (425, 45425), (575, 33575), (625, 30889), (1343, 14375), (1817, 10625), (1955, 9875), (1975, 9775), (2125, 9085), (2875, 6715)]