19816500980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{7867}}^1$

素因数の和:8049

約数の個数: 96

約数和(自身を含む): 44492595840

約数和(自身を除く): 24676094860

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 101, 116, 145, 172, 202, 215, 290, 404, 430, 505, 580, 860, 1010, 1247, 2020, 2494, 2929, 4343, 4988, 5858, 6235, 7867, 8686, 11716, 12470, 14645, 15734, 17372, 21715, 24940, 29290, 31468, 39335, 43430, 58580, 78670, 86860, 125947, 157340, 228143, 251894, 338281, 456286, 503788, 629735, 676562, 794567, 912572, 1140715, 1259470, 1353124, 1589134, 1691405, 2281430, 2518940, 3178268, 3382810, 3972835, 4562860, 6765620, 7945670, 9810149, 15891340, 19620298, 23042443, 34166381, 39240596, 46084886, 49050745, 68332762, 92169772, 98101490, 115212215, 136665524, 170831905, 196202980, 230424430, 341663810, 460848860, 683327620, 990825049, 1981650098, 3963300196, 4954125245, 9908250490, 19816500980]

約数ペア:

[(1, 19816500980), (2, 9908250490), (4, 4954125245), (5, 3963300196), (10, 1981650098), (20, 990825049), (29, 683327620), (43, 460848860), (58, 341663810), (86, 230424430), (101, 196202980), (116, 170831905), (145, 136665524), (172, 115212215), (202, 98101490), (215, 92169772), (290, 68332762), (404, 49050745), (430, 46084886), (505, 39240596), (580, 34166381), (860, 23042443), (1010, 19620298), (1247, 15891340), (2020, 9810149), (2494, 7945670), (2929, 6765620), (4343, 4562860), (4988, 3972835), (5858, 3382810), (6235, 3178268), (7867, 2518940), (8686, 2281430), (11716, 1691405), (12470, 1589134), (14645, 1353124), (15734, 1259470), (17372, 1140715), (21715, 912572), (24940, 794567), (29290, 676562), (31468, 629735), (39335, 503788), (43430, 456286), (58580, 338281), (78670, 251894), (86860, 228143), (125947, 157340)]