77621980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{133831}}^1$

素因数の和:133869

約数の個数: 24

約数和(自身を含む): 168628320

約数和(自身を除く): 91006340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 133831, 267662, 535324, 669155, 1338310, 2676620, 3881099, 7762198, 15524396, 19405495, 38810990, 77621980]

約数ペア:

[(1, 77621980), (2, 38810990), (4, 19405495), (5, 15524396), (10, 7762198), (20, 3881099), (29, 2676620), (58, 1338310), (116, 669155), (145, 535324), (290, 267662), (580, 133831)]