25905420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{15991}}^1$

素因数の和:16012

約数の個数: 60

約数和(自身を含む): 81271344

約数和(自身を除く): 55365924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 15991, 31982, 47973, 63964, 79955, 95946, 143919, 159910, 191892, 239865, 287838, 319820, 431757, 479730, 575676, 719595, 863514, 959460, 1295271, 1439190, 1727028, 2158785, 2590542, 2878380, 4317570, 5181084, 6476355, 8635140, 12952710, 25905420]

約数ペア:

[(1, 25905420), (2, 12952710), (3, 8635140), (4, 6476355), (5, 5181084), (6, 4317570), (9, 2878380), (10, 2590542), (12, 2158785), (15, 1727028), (18, 1439190), (20, 1295271), (27, 959460), (30, 863514), (36, 719595), (45, 575676), (54, 479730), (60, 431757), (81, 319820), (90, 287838), (108, 239865), (135, 191892), (162, 159910), (180, 143919), (270, 95946), (324, 79955), (405, 63964), (540, 47973), (810, 31982), (1620, 15991)]