78325880

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{2269}}^1$

素因数の和:3143

約数の個数: 32

約数和(自身を含む): 176515200

約数和(自身を除く): 98189320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1726, 2269, 3452, 4315, 4538, 6904, 8630, 9076, 11345, 17260, 18152, 22690, 34520, 45380, 90760, 1958147, 3916294, 7832588, 9790735, 15665176, 19581470, 39162940, 78325880]

約数ペア:

[(1, 78325880), (2, 39162940), (4, 19581470), (5, 15665176), (8, 9790735), (10, 7832588), (20, 3916294), (40, 1958147), (863, 90760), (1726, 45380), (2269, 34520), (3452, 22690), (4315, 18152), (4538, 17260), (6904, 11345), (8630, 9076)]