204540920

素因数分解:

$2^3\times 5^1\times {\mathrm{1889}}^1\times {\mathrm{2707}}^1$

素因数の和:4607

約数の個数: 32

約数和(自身を含む): 460630800

約数和(自身を除く): 256089880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1889, 2707, 3778, 5414, 7556, 9445, 10828, 13535, 15112, 18890, 21656, 27070, 37780, 54140, 75560, 108280, 5113523, 10227046, 20454092, 25567615, 40908184, 51135230, 102270460, 204540920]

約数ペア:

[(1, 204540920), (2, 102270460), (4, 51135230), (5, 40908184), (8, 25567615), (10, 20454092), (20, 10227046), (40, 5113523), (1889, 108280), (2707, 75560), (3778, 54140), (5414, 37780), (7556, 27070), (9445, 21656), (10828, 18890), (13535, 15112)]