804965020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{111491}}^1$

素因数の和:111538

約数の個数: 36

約数和(自身を含む): 1784094984

約数和(自身を除く): 979129964

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 111491, 222982, 445964, 557455, 1114910, 2118329, 2229820, 4236658, 8473316, 10591645, 21183290, 40248251, 42366580, 80496502, 160993004, 201241255, 402482510, 804965020]

約数ペア:

[(1, 804965020), (2, 402482510), (4, 201241255), (5, 160993004), (10, 80496502), (19, 42366580), (20, 40248251), (38, 21183290), (76, 10591645), (95, 8473316), (190, 4236658), (361, 2229820), (380, 2118329), (722, 1114910), (1444, 557455), (1805, 445964), (3610, 222982), (7220, 111491)]