20785913625

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:472

約数の個数: 128

約数和(自身を含む): 36954537984

約数和(自身を除く): 16168624359

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 101, 107, 115, 125, 223, 303, 321, 345, 375, 505, 535, 575, 669, 1115, 1515, 1605, 1725, 2323, 2461, 2525, 2675, 2875, 3345, 5129, 5575, 6969, 7383, 7575, 8025, 8625, 10807, 11615, 12305, 12625, 13375, 15387, 16725, 22523, 23861, 25645, 27875, 32421, 34845, 36915, 37875, 40125, 54035, 58075, 61525, 67569, 71583, 76935, 83625, 112615, 119305, 128225, 162105, 174225, 184575, 248561, 270175, 290375, 307625, 337845, 357915, 384675, 518029, 548803, 563075, 596525, 641125, 745683, 810525, 871125, 922875, 1242805, 1350875, 1554087, 1646409, 1689225, 1789575, 1923375, 2409961, 2590145, 2744015, 2815375, 2982625, 3728415, 4052625, 6214025, 7229883, 7770435, 8232045, 8446125, 8947875, 12049805, 12950725, 13720075, 18642075, 31070125, 36149415, 38852175, 41160225, 55429103, 60249025, 64753625, 68600375, 93210375, 166287309, 180747075, 194260875, 205801125, 277145515, 301245125, 831436545, 903735375, 1385727575, 4157182725, 6928637875, 20785913625]

約数ペア:

[(1, 20785913625), (3, 6928637875), (5, 4157182725), (15, 1385727575), (23, 903735375), (25, 831436545), (69, 301245125), (75, 277145515), (101, 205801125), (107, 194260875), (115, 180747075), (125, 166287309), (223, 93210375), (303, 68600375), (321, 64753625), (345, 60249025), (375, 55429103), (505, 41160225), (535, 38852175), (575, 36149415), (669, 31070125), (1115, 18642075), (1515, 13720075), (1605, 12950725), (1725, 12049805), (2323, 8947875), (2461, 8446125), (2525, 8232045), (2675, 7770435), (2875, 7229883), (3345, 6214025), (5129, 4052625), (5575, 3728415), (6969, 2982625), (7383, 2815375), (7575, 2744015), (8025, 2590145), (8625, 2409961), (10807, 1923375), (11615, 1789575), (12305, 1689225), (12625, 1646409), (13375, 1554087), (15387, 1350875), (16725, 1242805), (22523, 922875), (23861, 871125), (25645, 810525), (27875, 745683), (32421, 641125), (34845, 596525), (36915, 563075), (37875, 548803), (40125, 518029), (54035, 384675), (58075, 357915), (61525, 337845), (67569, 307625), (71583, 290375), (76935, 270175), (83625, 248561), (112615, 184575), (119305, 174225), (128225, 162105)]