10991980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17729}}^1$

素因数の和:17769

約数の個数: 24

約数和(自身を含む): 23829120

約数和(自身を除く): 12837140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 17729, 35458, 70916, 88645, 177290, 354580, 549599, 1099198, 2198396, 2747995, 5495990, 10991980]

約数ペア:

[(1, 10991980), (2, 5495990), (4, 2747995), (5, 2198396), (10, 1099198), (20, 549599), (31, 354580), (62, 177290), (124, 88645), (155, 70916), (310, 35458), (620, 17729)]