13031780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21019}}^1$

素因数の和:21059

約数の個数: 24

約数和(自身を含む): 28250880

約数和(自身を除く): 15219100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21019, 42038, 84076, 105095, 210190, 420380, 651589, 1303178, 2606356, 3257945, 6515890, 13031780]

約数ペア:

[(1, 13031780), (2, 6515890), (4, 3257945), (5, 2606356), (10, 1303178), (20, 651589), (31, 420380), (62, 210190), (124, 105095), (155, 84076), (310, 42038), (620, 21019)]