19929375

素因数分解:

$3^3\times 5^4\times {\mathrm{1181}}^1$

素因数の和:1210

約数の個数: 40

約数和(自身を含む): 36925680

約数和(自身を除く): 16996305

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 625, 675, 1125, 1181, 1875, 3375, 3543, 5625, 5905, 10629, 16875, 17715, 29525, 31887, 53145, 88575, 147625, 159435, 265725, 442875, 738125, 797175, 1328625, 2214375, 3985875, 6643125, 19929375]

約数ペア:

[(1, 19929375), (3, 6643125), (5, 3985875), (9, 2214375), (15, 1328625), (25, 797175), (27, 738125), (45, 442875), (75, 265725), (125, 159435), (135, 147625), (225, 88575), (375, 53145), (625, 31887), (675, 29525), (1125, 17715), (1181, 16875), (1875, 10629), (3375, 5905), (3543, 5625)]