78243575

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 99249600

約数和(自身を除く): 21006025

約数列:

[1, 5, 25, 79, 173, 229, 395, 865, 1145, 1975, 4325, 5725, 13667, 18091, 39617, 68335, 90455, 198085, 341675, 452275, 990425, 3129743, 15648715, 78243575]

約数ペア:

[(1, 78243575), (5, 15648715), (25, 3129743), (79, 990425), (173, 452275), (229, 341675), (395, 198085), (865, 90455), (1145, 68335), (1975, 39617), (4325, 18091), (5725, 13667)]