20105828875

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:518

約数の個数: 96

約数和(自身を含む): 28769674752

約数和(自身を除く): 8663845877

約数列:

[1, 5, 11, 25, 31, 55, 121, 125, 137, 155, 275, 313, 341, 605, 685, 775, 1375, 1507, 1565, 1705, 3025, 3425, 3443, 3751, 3875, 4247, 7535, 7825, 8525, 9703, 15125, 16577, 17125, 17215, 18755, 21235, 37675, 37873, 39125, 42625, 42881, 46717, 48515, 82885, 86075, 93775, 106175, 106733, 188375, 189365, 214405, 233585, 242575, 414425, 430375, 468875, 471691, 513887, 530875, 533665, 946825, 1072025, 1167925, 1174063, 1212875, 1329311, 2072125, 2358455, 2569435, 2668325, 4734125, 5188601, 5360125, 5839625, 5870315, 6646555, 11792275, 12847175, 13341625, 14622421, 25943005, 29351575, 33232775, 58961375, 64235875, 73112105, 129715025, 146757875, 160846631, 166163875, 365560525, 648575125, 804233155, 1827802625, 4021165775, 20105828875]

約数ペア:

[(1, 20105828875), (5, 4021165775), (11, 1827802625), (25, 804233155), (31, 648575125), (55, 365560525), (121, 166163875), (125, 160846631), (137, 146757875), (155, 129715025), (275, 73112105), (313, 64235875), (341, 58961375), (605, 33232775), (685, 29351575), (775, 25943005), (1375, 14622421), (1507, 13341625), (1565, 12847175), (1705, 11792275), (3025, 6646555), (3425, 5870315), (3443, 5839625), (3751, 5360125), (3875, 5188601), (4247, 4734125), (7535, 2668325), (7825, 2569435), (8525, 2358455), (9703, 2072125), (15125, 1329311), (16577, 1212875), (17125, 1174063), (17215, 1167925), (18755, 1072025), (21235, 946825), (37675, 533665), (37873, 530875), (39125, 513887), (42625, 471691), (42881, 468875), (46717, 430375), (48515, 414425), (82885, 242575), (86075, 233585), (93775, 214405), (106175, 189365), (106733, 188375)]