18927980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{30529}}^1$

素因数の和:30569

約数の個数: 24

約数和(自身を含む): 41032320

約数和(自身を除く): 22104340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 30529, 61058, 122116, 152645, 305290, 610580, 946399, 1892798, 3785596, 4731995, 9463990, 18927980]

約数ペア:

[(1, 18927980), (2, 9463990), (4, 4731995), (5, 3785596), (10, 1892798), (20, 946399), (31, 610580), (62, 305290), (124, 152645), (155, 122116), (310, 61058), (620, 30529)]