28210378

素因数分解:

$2^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 26221622

約数列:

[1, 2, 7, 14, 17, 34, 41, 49, 59, 82, 98, 118, 119, 238, 287, 343, 413, 574, 686, 697, 826, 833, 1003, 1394, 1666, 2006, 2009, 2419, 2891, 4018, 4838, 4879, 5782, 5831, 7021, 9758, 11662, 14042, 14063, 16933, 20237, 28126, 33866, 34153, 40474, 41123, 49147, 68306, 82246, 98294, 118531, 237062, 239071, 287861, 344029, 478142, 575722, 688058, 829717, 1659434, 2015027, 4030054, 14105189, 28210378]

約数ペア:

[(1, 28210378), (2, 14105189), (7, 4030054), (14, 2015027), (17, 1659434), (34, 829717), (41, 688058), (49, 575722), (59, 478142), (82, 344029), (98, 287861), (118, 239071), (119, 237062), (238, 118531), (287, 98294), (343, 82246), (413, 68306), (574, 49147), (686, 41123), (697, 40474), (826, 34153), (833, 33866), (1003, 28126), (1394, 20237), (1666, 16933), (2006, 14063), (2009, 14042), (2419, 11662), (2891, 9758), (4018, 7021), (4838, 5831), (4879, 5782)]