19965661040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19197751}}^1$

素因数の和:19197777

約数の個数: 40

約数和(自身を含む): 49990946208

約数和(自身を除く): 30025285168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19197751, 38395502, 76791004, 95988755, 153582008, 191977510, 249570763, 307164016, 383955020, 499141526, 767910040, 998283052, 1247853815, 1535820080, 1996566104, 2495707630, 3993132208, 4991415260, 9982830520, 19965661040]

約数ペア:

[(1, 19965661040), (2, 9982830520), (4, 4991415260), (5, 3993132208), (8, 2495707630), (10, 1996566104), (13, 1535820080), (16, 1247853815), (20, 998283052), (26, 767910040), (40, 499141526), (52, 383955020), (65, 307164016), (80, 249570763), (104, 191977510), (130, 153582008), (208, 95988755), (260, 76791004), (520, 38395502), (1040, 19197751)]