19636825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 28498176

約数和(自身を除く): 8861351

約数列:

[1, 5, 13, 23, 25, 37, 65, 71, 115, 185, 299, 325, 355, 481, 575, 851, 923, 925, 1495, 1633, 1775, 2405, 2627, 4255, 4615, 7475, 8165, 11063, 12025, 13135, 21229, 21275, 23075, 34151, 40825, 55315, 60421, 65675, 106145, 170755, 276575, 302105, 530725, 785473, 853775, 1510525, 3927365, 19636825]

約数ペア:

[(1, 19636825), (5, 3927365), (13, 1510525), (23, 853775), (25, 785473), (37, 530725), (65, 302105), (71, 276575), (115, 170755), (185, 106145), (299, 65675), (325, 60421), (355, 55315), (481, 40825), (575, 34151), (851, 23075), (923, 21275), (925, 21229), (1495, 13135), (1633, 12025), (1775, 11063), (2405, 8165), (2627, 7475), (4255, 4615)]