1781980372

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{1609}}^1$

素因数の和:1840

約数の個数: 48

約数和(自身を含む): 3284709120

約数和(自身を除く): 1502728748

約数列:

[1, 2, 4, 43, 47, 86, 94, 137, 172, 188, 274, 548, 1609, 2021, 3218, 4042, 5891, 6436, 6439, 8084, 11782, 12878, 23564, 25756, 69187, 75623, 138374, 151246, 220433, 276748, 276877, 302492, 440866, 553754, 881732, 1107508, 3251789, 6503578, 9478619, 10360351, 13007156, 18957238, 20720702, 37914476, 41441404, 445495093, 890990186, 1781980372]

約数ペア:

[(1, 1781980372), (2, 890990186), (4, 445495093), (43, 41441404), (47, 37914476), (86, 20720702), (94, 18957238), (137, 13007156), (172, 10360351), (188, 9478619), (274, 6503578), (548, 3251789), (1609, 1107508), (2021, 881732), (3218, 553754), (4042, 440866), (5891, 302492), (6436, 276877), (6439, 276748), (8084, 220433), (11782, 151246), (12878, 138374), (23564, 75623), (25756, 69187)]