16428760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13249}}^1$

素因数の和:13291

約数の個数: 32

約数和(自身を含む): 38160000

約数和(自身を除く): 21731240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 13249, 26498, 52996, 66245, 105992, 132490, 264980, 410719, 529960, 821438, 1642876, 2053595, 3285752, 4107190, 8214380, 16428760]

約数ペア:

[(1, 16428760), (2, 8214380), (4, 4107190), (5, 3285752), (8, 2053595), (10, 1642876), (20, 821438), (31, 529960), (40, 410719), (62, 264980), (124, 132490), (155, 105992), (248, 66245), (310, 52996), (620, 26498), (1240, 13249)]