54321988

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{503}}^1$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 120657600

約数和(自身を除く): 66335612

約数列:

[1, 2, 4, 7, 14, 19, 28, 29, 38, 49, 58, 76, 98, 116, 133, 196, 203, 266, 406, 503, 532, 551, 812, 931, 1006, 1102, 1421, 1862, 2012, 2204, 2842, 3521, 3724, 3857, 5684, 7042, 7714, 9557, 14084, 14587, 15428, 19114, 24647, 26999, 29174, 38228, 49294, 53998, 58348, 66899, 98588, 102109, 107996, 133798, 204218, 267596, 277153, 408436, 468293, 554306, 714763, 936586, 1108612, 1429526, 1873172, 1940071, 2859052, 3880142, 7760284, 13580497, 27160994, 54321988]

約数ペア:

[(1, 54321988), (2, 27160994), (4, 13580497), (7, 7760284), (14, 3880142), (19, 2859052), (28, 1940071), (29, 1873172), (38, 1429526), (49, 1108612), (58, 936586), (76, 714763), (98, 554306), (116, 468293), (133, 408436), (196, 277153), (203, 267596), (266, 204218), (406, 133798), (503, 107996), (532, 102109), (551, 98588), (812, 66899), (931, 58348), (1006, 53998), (1102, 49294), (1421, 38228), (1862, 29174), (2012, 26999), (2204, 24647), (2842, 19114), (3521, 15428), (3724, 14587), (3857, 14084), (5684, 9557), (7042, 7714)]