28840176001

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{421}}^1\times {\mathrm{733}}^1$

素因数の和:1266

約数の個数: 48

約数和(自身を含む): 36277685760

約数和(自身を除く): 7437509759

約数列:

[1, 7, 13, 79, 91, 169, 421, 553, 733, 1027, 1183, 2947, 5131, 5473, 7189, 9529, 13351, 33259, 38311, 57907, 66703, 71149, 93457, 123877, 232813, 308593, 405349, 432367, 498043, 752791, 867139, 2160151, 3026569, 4011709, 5269537, 5620771, 9786283, 24378847, 28081963, 39345397, 52152217, 68503981, 170651929, 316925011, 365065519, 2218475077, 4120025143, 28840176001]

約数ペア:

[(1, 28840176001), (7, 4120025143), (13, 2218475077), (79, 365065519), (91, 316925011), (169, 170651929), (421, 68503981), (553, 52152217), (733, 39345397), (1027, 28081963), (1183, 24378847), (2947, 9786283), (5131, 5620771), (5473, 5269537), (7189, 4011709), (9529, 3026569), (13351, 2160151), (33259, 867139), (38311, 752791), (57907, 498043), (66703, 432367), (71149, 405349), (93457, 308593), (123877, 232813)]