19852625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 28129920

約数和(自身を除く): 8277295

約数列:

[1, 5, 13, 19, 25, 65, 95, 125, 247, 325, 475, 643, 1235, 1625, 2375, 3215, 6175, 8359, 12217, 16075, 30875, 41795, 61085, 80375, 158821, 208975, 305425, 794105, 1044875, 1527125, 3970525, 19852625]

約数ペア:

[(1, 19852625), (5, 3970525), (13, 1527125), (19, 1044875), (25, 794105), (65, 305425), (95, 208975), (125, 158821), (247, 80375), (325, 61085), (475, 41795), (643, 30875), (1235, 16075), (1625, 12217), (2375, 8359), (3215, 6175)]