201721880

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{8863}}^1$

素因数の和:9443

約数の個数: 32

約数和(自身を含む): 454723200

約数和(自身を除く): 253001320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 1138, 2276, 2845, 4552, 5690, 8863, 11380, 17726, 22760, 35452, 44315, 70904, 88630, 177260, 354520, 5043047, 10086094, 20172188, 25215235, 40344376, 50430470, 100860940, 201721880]

約数ペア:

[(1, 201721880), (2, 100860940), (4, 50430470), (5, 40344376), (8, 25215235), (10, 20172188), (20, 10086094), (40, 5043047), (569, 354520), (1138, 177260), (2276, 88630), (2845, 70904), (4552, 44315), (5690, 35452), (8863, 22760), (11380, 17726)]