19720323910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{981599}}^1$

素因数の和:981661

約数の個数: 48

約数和(自身を含む): 42299107200

約数和(自身を除く): 22578783290

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 49, 70, 82, 98, 205, 245, 287, 410, 490, 574, 1435, 2009, 2870, 4018, 10045, 20090, 981599, 1963198, 4907995, 6871193, 9815990, 13742386, 34355965, 40245559, 48098351, 68711930, 80491118, 96196702, 201227795, 240491755, 281718913, 402455590, 480983510, 563437826, 1408594565, 1972032391, 2817189130, 3944064782, 9860161955, 19720323910]

約数ペア:

[(1, 19720323910), (2, 9860161955), (5, 3944064782), (7, 2817189130), (10, 1972032391), (14, 1408594565), (35, 563437826), (41, 480983510), (49, 402455590), (70, 281718913), (82, 240491755), (98, 201227795), (205, 96196702), (245, 80491118), (287, 68711930), (410, 48098351), (490, 40245559), (574, 34355965), (1435, 13742386), (2009, 9815990), (2870, 6871193), (4018, 4907995), (10045, 1963198), (20090, 981599)]