17719870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{29}}^2\times {\mathrm{43}}^1$

素因数の和:122

約数の個数: 72

約数和(自身を含む): 39320424

約数和(自身を除く): 21600554

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 43, 49, 58, 70, 86, 98, 145, 203, 215, 245, 290, 301, 406, 430, 490, 602, 841, 1015, 1247, 1421, 1505, 1682, 2030, 2107, 2494, 2842, 3010, 4205, 4214, 5887, 6235, 7105, 8410, 8729, 10535, 11774, 12470, 14210, 17458, 21070, 29435, 36163, 41209, 43645, 58870, 61103, 72326, 82418, 87290, 122206, 180815, 206045, 253141, 305515, 361630, 412090, 506282, 611030, 1265705, 1771987, 2531410, 3543974, 8859935, 17719870]

約数ペア:

[(1, 17719870), (2, 8859935), (5, 3543974), (7, 2531410), (10, 1771987), (14, 1265705), (29, 611030), (35, 506282), (43, 412090), (49, 361630), (58, 305515), (70, 253141), (86, 206045), (98, 180815), (145, 122206), (203, 87290), (215, 82418), (245, 72326), (290, 61103), (301, 58870), (406, 43645), (430, 41209), (490, 36163), (602, 29435), (841, 21070), (1015, 17458), (1247, 14210), (1421, 12470), (1505, 11774), (1682, 10535), (2030, 8729), (2107, 8410), (2494, 7105), (2842, 6235), (3010, 5887), (4205, 4214)]