128001880

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{28319}}^1$

素因数の和:28443

約数の個数: 32

約数和(自身を含む): 290563200

約数和(自身を除く): 162561320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 28319, 56638, 113276, 141595, 226552, 283190, 566380, 1132760, 3200047, 6400094, 12800188, 16000235, 25600376, 32000470, 64000940, 128001880]

約数ペア:

[(1, 128001880), (2, 64000940), (4, 32000470), (5, 25600376), (8, 16000235), (10, 12800188), (20, 6400094), (40, 3200047), (113, 1132760), (226, 566380), (452, 283190), (565, 226552), (904, 141595), (1130, 113276), (2260, 56638), (4520, 28319)]