20130637709

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{53}}^1\times {\mathrm{709}}^1$

素因数の和:847

約数の個数: 72

約数和(自身を含む): 26648523720

約数和(自身を除く): 6517886011

約数列:

[1, 7, 13, 29, 49, 53, 91, 203, 371, 377, 637, 689, 709, 841, 1421, 1537, 2597, 2639, 4823, 4963, 5887, 9217, 10759, 10933, 18473, 19981, 20561, 33761, 34741, 37577, 41209, 44573, 64519, 75313, 76531, 139867, 143927, 263039, 267293, 312011, 451633, 488501, 535717, 579449, 596269, 979069, 1007489, 1089733, 1841273, 1871051, 2184077, 3419507, 4056143, 4173883, 7628131, 7751497, 13097357, 14166529, 23936549, 28393001, 29217181, 31602257, 53396917, 54260479, 99165703, 221215799, 379823353, 410829341, 694159921, 1548510593, 2875805387, 20130637709]

約数ペア:

[(1, 20130637709), (7, 2875805387), (13, 1548510593), (29, 694159921), (49, 410829341), (53, 379823353), (91, 221215799), (203, 99165703), (371, 54260479), (377, 53396917), (637, 31602257), (689, 29217181), (709, 28393001), (841, 23936549), (1421, 14166529), (1537, 13097357), (2597, 7751497), (2639, 7628131), (4823, 4173883), (4963, 4056143), (5887, 3419507), (9217, 2184077), (10759, 1871051), (10933, 1841273), (18473, 1089733), (19981, 1007489), (20561, 979069), (33761, 596269), (34741, 579449), (37577, 535717), (41209, 488501), (44573, 451633), (64519, 312011), (75313, 267293), (76531, 263039), (139867, 143927)]