20084260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3499}}^1$

素因数の和:3556

約数の個数: 48

約数和(自身を含む): 49392000

約数和(自身を除く): 29307740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3499, 5740, 6998, 13996, 17495, 24493, 34990, 48986, 69980, 97972, 122465, 143459, 244930, 286918, 489860, 573836, 717295, 1004213, 1434590, 2008426, 2869180, 4016852, 5021065, 10042130, 20084260]

約数ペア:

[(1, 20084260), (2, 10042130), (4, 5021065), (5, 4016852), (7, 2869180), (10, 2008426), (14, 1434590), (20, 1004213), (28, 717295), (35, 573836), (41, 489860), (70, 286918), (82, 244930), (140, 143459), (164, 122465), (205, 97972), (287, 69980), (410, 48986), (574, 34990), (820, 24493), (1148, 17495), (1435, 13996), (2870, 6998), (3499, 5740)]