51540040

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{21839}}^1$

素因数の和:21909

約数の個数: 32

約数和(自身を含む): 117936000

約数和(自身を除く): 66395960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 21839, 43678, 87356, 109195, 174712, 218390, 436780, 873560, 1288501, 2577002, 5154004, 6442505, 10308008, 12885010, 25770020, 51540040]

約数ペア:

[(1, 51540040), (2, 25770020), (4, 12885010), (5, 10308008), (8, 6442505), (10, 5154004), (20, 2577002), (40, 1288501), (59, 873560), (118, 436780), (236, 218390), (295, 174712), (472, 109195), (590, 87356), (1180, 43678), (2360, 21839)]