31776875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{3911}}^1$

素因数の和:3944

約数の個数: 20

約数和(自身を含む): 42773808

約数和(自身を除く): 10996933

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 3911, 8125, 19555, 50843, 97775, 254215, 488875, 1271075, 2444375, 6355375, 31776875]

約数ペア:

[(1, 31776875), (5, 6355375), (13, 2444375), (25, 1271075), (65, 488875), (125, 254215), (325, 97775), (625, 50843), (1625, 19555), (3911, 8125)]