19548560

素因数分解:

$2^4\times 5^1\times {\mathrm{244357}}^1$

素因数の和:244370

約数の個数: 20

約数和(自身を含む): 45450588

約数和(自身を除く): 25902028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244357, 488714, 977428, 1221785, 1954856, 2443570, 3909712, 4887140, 9774280, 19548560]

約数ペア:

[(1, 19548560), (2, 9774280), (4, 4887140), (5, 3909712), (8, 2443570), (10, 1954856), (16, 1221785), (20, 977428), (40, 488714), (80, 244357)]