1999488560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1315453}}^1$

素因数の和:1315485

約数の個数: 40

約数和(自身を含む): 4893488880

約数和(自身を除く): 2894000320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1315453, 2630906, 5261812, 6577265, 10523624, 13154530, 21047248, 24993607, 26309060, 49987214, 52618120, 99974428, 105236240, 124968035, 199948856, 249936070, 399897712, 499872140, 999744280, 1999488560]

約数ペア:

[(1, 1999488560), (2, 999744280), (4, 499872140), (5, 399897712), (8, 249936070), (10, 199948856), (16, 124968035), (19, 105236240), (20, 99974428), (38, 52618120), (40, 49987214), (76, 26309060), (80, 24993607), (95, 21047248), (152, 13154530), (190, 10523624), (304, 6577265), (380, 5261812), (760, 2630906), (1520, 1315453)]