228720760

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{43649}}^1$

素因数の和:43791

約数の個数: 32

約数和(自身を含む): 518562000

約数和(自身を除く): 289841240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 43649, 87298, 174596, 218245, 349192, 436490, 872980, 1745960, 5718019, 11436038, 22872076, 28590095, 45744152, 57180190, 114360380, 228720760]

約数ペア:

[(1, 228720760), (2, 114360380), (4, 57180190), (5, 45744152), (8, 28590095), (10, 22872076), (20, 11436038), (40, 5718019), (131, 1745960), (262, 872980), (524, 436490), (655, 349192), (1048, 218245), (1310, 174596), (2620, 87298), (5240, 43649)]