20347062820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{463}}^1\times {\mathrm{44843}}^1$

素因数の和:45329

約数の個数: 72

約数和(自身を含む): 49813432704

約数和(自身を除く): 29466369884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 463, 490, 926, 980, 1852, 2315, 3241, 4630, 6482, 9260, 12964, 16205, 22687, 32410, 44843, 45374, 64820, 89686, 90748, 113435, 179372, 224215, 226870, 313901, 448430, 453740, 627802, 896860, 1255604, 1569505, 2197307, 3139010, 4394614, 6278020, 8789228, 10986535, 20762309, 21973070, 41524618, 43946140, 83049236, 103811545, 145336163, 207623090, 290672326, 415246180, 581344652, 726680815, 1017353141, 1453361630, 2034706282, 2906723260, 4069412564, 5086765705, 10173531410, 20347062820]

約数ペア:

[(1, 20347062820), (2, 10173531410), (4, 5086765705), (5, 4069412564), (7, 2906723260), (10, 2034706282), (14, 1453361630), (20, 1017353141), (28, 726680815), (35, 581344652), (49, 415246180), (70, 290672326), (98, 207623090), (140, 145336163), (196, 103811545), (245, 83049236), (463, 43946140), (490, 41524618), (926, 21973070), (980, 20762309), (1852, 10986535), (2315, 8789228), (3241, 6278020), (4630, 4394614), (6482, 3139010), (9260, 2197307), (12964, 1569505), (16205, 1255604), (22687, 896860), (32410, 627802), (44843, 453740), (45374, 448430), (64820, 313901), (89686, 226870), (90748, 224215), (113435, 179372)]