1665625

素因数分解:

$5^5\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:79

約数の個数: 24

約数和(自身を含む): 2296728

約数和(自身を除く): 631103

約数列:

[1, 5, 13, 25, 41, 65, 125, 205, 325, 533, 625, 1025, 1625, 2665, 3125, 5125, 8125, 13325, 25625, 40625, 66625, 128125, 333125, 1665625]

約数ペア:

[(1, 1665625), (5, 333125), (13, 128125), (25, 66625), (41, 40625), (65, 25625), (125, 13325), (205, 8125), (325, 5125), (533, 3125), (625, 2665), (1025, 1625)]