4877560

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2071

約数の個数: 32

約数和(自身を含む): 11160000

約数和(自身を除く): 6282440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1999, 2440, 3998, 7996, 9995, 15992, 19990, 39980, 79960, 121939, 243878, 487756, 609695, 975512, 1219390, 2438780, 4877560]

約数ペア:

[(1, 4877560), (2, 2438780), (4, 1219390), (5, 975512), (8, 609695), (10, 487756), (20, 243878), (40, 121939), (61, 79960), (122, 39980), (244, 19990), (305, 15992), (488, 9995), (610, 7996), (1220, 3998), (1999, 2440)]