20346036640

素因数分解:

$2^5\times 5^1\times {\mathrm{419}}^1\times {\mathrm{303491}}^1$

素因数の和:303925

約数の個数: 48

約数和(自身を含む): 48182389920

約数和(自身を除く): 27836353280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 419, 838, 1676, 2095, 3352, 4190, 6704, 8380, 13408, 16760, 33520, 67040, 303491, 606982, 1213964, 1517455, 2427928, 3034910, 4855856, 6069820, 9711712, 12139640, 24279280, 48558560, 127162729, 254325458, 508650916, 635813645, 1017301832, 1271627290, 2034603664, 2543254580, 4069207328, 5086509160, 10173018320, 20346036640]

約数ペア:

[(1, 20346036640), (2, 10173018320), (4, 5086509160), (5, 4069207328), (8, 2543254580), (10, 2034603664), (16, 1271627290), (20, 1017301832), (32, 635813645), (40, 508650916), (80, 254325458), (160, 127162729), (419, 48558560), (838, 24279280), (1676, 12139640), (2095, 9711712), (3352, 6069820), (4190, 4855856), (6704, 3034910), (8380, 2427928), (13408, 1517455), (16760, 1213964), (33520, 606982), (67040, 303491)]