1719150520

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{66841}}^1$

素因数の和:67495

約数の個数: 32

約数和(自身を含む): 3874162320

約数和(自身を除く): 2155011800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 12860, 25720, 66841, 133682, 267364, 334205, 534728, 668410, 1336820, 2673640, 42978763, 85957526, 171915052, 214893815, 343830104, 429787630, 859575260, 1719150520]

約数ペア:

[(1, 1719150520), (2, 859575260), (4, 429787630), (5, 343830104), (8, 214893815), (10, 171915052), (20, 85957526), (40, 42978763), (643, 2673640), (1286, 1336820), (2572, 668410), (3215, 534728), (5144, 334205), (6430, 267364), (12860, 133682), (25720, 66841)]