3987625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:130

約数の個数: 32

約数和(自身を含む): 5541120

約数和(自身を除く): 1553495

約数列:

[1, 5, 19, 23, 25, 73, 95, 115, 125, 365, 437, 475, 575, 1387, 1679, 1825, 2185, 2375, 2875, 6935, 8395, 9125, 10925, 31901, 34675, 41975, 54625, 159505, 173375, 209875, 797525, 3987625]

約数ペア:

[(1, 3987625), (5, 797525), (19, 209875), (23, 173375), (25, 159505), (73, 54625), (95, 41975), (115, 34675), (125, 31901), (365, 10925), (437, 9125), (475, 8395), (575, 6935), (1387, 2875), (1679, 2375), (1825, 2185)]