20199453975

素因数分解:

$3^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{617}}^1$

素因数の和:976

約数の個数: 144

約数和(自身を含む): 39916382688

約数和(自身を除く): 19716928713

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 243, 255, 317, 405, 425, 459, 617, 675, 765, 951, 1215, 1275, 1377, 1585, 1851, 2025, 2295, 2853, 3085, 3825, 4131, 4755, 5389, 5553, 6075, 6885, 7925, 8559, 9255, 10489, 11475, 14265, 15425, 16167, 16659, 20655, 23775, 25677, 26945, 27765, 31467, 34425, 42795, 46275, 48501, 49977, 52445, 71325, 77031, 80835, 83295, 94401, 103275, 128385, 134725, 138825, 145503, 149931, 157335, 195589, 213975, 242505, 249885, 262225, 283203, 385155, 404175, 416475, 436509, 472005, 586767, 641925, 727515, 749655, 786675, 849609, 977945, 1212525, 1249425, 1309527, 1416015, 1760301, 1925775, 2182545, 2360025, 2548827, 2933835, 3325013, 3637575, 3748275, 4248045, 4889725, 5280903, 6547635, 7080075, 8801505, 9975039, 10912725, 12744135, 14669175, 15842709, 16625065, 21240225, 26404515, 29925117, 32738175, 44007525, 47528127, 49875195, 63720675, 79213545, 83125325, 89775351, 132022575, 149625585, 237640635, 249375975, 269326053, 396067725, 448876755, 748127925, 807978159, 1188203175, 1346630265, 2244383775, 4039890795, 6733151325, 20199453975]

約数ペア:

[(1, 20199453975), (3, 6733151325), (5, 4039890795), (9, 2244383775), (15, 1346630265), (17, 1188203175), (25, 807978159), (27, 748127925), (45, 448876755), (51, 396067725), (75, 269326053), (81, 249375975), (85, 237640635), (135, 149625585), (153, 132022575), (225, 89775351), (243, 83125325), (255, 79213545), (317, 63720675), (405, 49875195), (425, 47528127), (459, 44007525), (617, 32738175), (675, 29925117), (765, 26404515), (951, 21240225), (1215, 16625065), (1275, 15842709), (1377, 14669175), (1585, 12744135), (1851, 10912725), (2025, 9975039), (2295, 8801505), (2853, 7080075), (3085, 6547635), (3825, 5280903), (4131, 4889725), (4755, 4248045), (5389, 3748275), (5553, 3637575), (6075, 3325013), (6885, 2933835), (7925, 2548827), (8559, 2360025), (9255, 2182545), (10489, 1925775), (11475, 1760301), (14265, 1416015), (15425, 1309527), (16167, 1249425), (16659, 1212525), (20655, 977945), (23775, 849609), (25677, 786675), (26945, 749655), (27765, 727515), (31467, 641925), (34425, 586767), (42795, 472005), (46275, 436509), (48501, 416475), (49977, 404175), (52445, 385155), (71325, 283203), (77031, 262225), (80835, 249885), (83295, 242505), (94401, 213975), (103275, 195589), (128385, 157335), (134725, 149931), (138825, 145503)]