220760360

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{56897}}^1$

素因数の和:57005

約数の個数: 32

約数和(自身を含む): 501840360

約数和(自身を除く): 281080000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 56897, 113794, 227588, 284485, 455176, 568970, 1137940, 2275880, 5519009, 11038018, 22076036, 27595045, 44152072, 55190090, 110380180, 220760360]

約数ペア:

[(1, 220760360), (2, 110380180), (4, 55190090), (5, 44152072), (8, 27595045), (10, 22076036), (20, 11038018), (40, 5519009), (97, 2275880), (194, 1137940), (388, 568970), (485, 455176), (776, 284485), (970, 227588), (1940, 113794), (3880, 56897)]