1620244920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{28789}}^1$

素因数の和:28877

約数の個数: 128

約数和(自身を含む): 5638233600

約数和(自身を除く): 4017988680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 67, 70, 84, 105, 120, 134, 140, 168, 201, 210, 268, 280, 335, 402, 420, 469, 536, 670, 804, 840, 938, 1005, 1340, 1407, 1608, 1876, 2010, 2345, 2680, 2814, 3752, 4020, 4690, 5628, 7035, 8040, 9380, 11256, 14070, 18760, 28140, 28789, 56280, 57578, 86367, 115156, 143945, 172734, 201523, 230312, 287890, 345468, 403046, 431835, 575780, 604569, 690936, 806092, 863670, 1007615, 1151560, 1209138, 1612184, 1727340, 1928863, 2015230, 2418276, 3022845, 3454680, 3857726, 4030460, 4836552, 5786589, 6045690, 7715452, 8060920, 9644315, 11573178, 12091380, 13502041, 15430904, 19288630, 23146356, 24182760, 27004082, 28932945, 38577260, 40506123, 46292712, 54008164, 57865890, 67510205, 77154520, 81012246, 108016328, 115731780, 135020410, 162024492, 202530615, 231463560, 270040820, 324048984, 405061230, 540081640, 810122460, 1620244920]

約数ペア:

[(1, 1620244920), (2, 810122460), (3, 540081640), (4, 405061230), (5, 324048984), (6, 270040820), (7, 231463560), (8, 202530615), (10, 162024492), (12, 135020410), (14, 115731780), (15, 108016328), (20, 81012246), (21, 77154520), (24, 67510205), (28, 57865890), (30, 54008164), (35, 46292712), (40, 40506123), (42, 38577260), (56, 28932945), (60, 27004082), (67, 24182760), (70, 23146356), (84, 19288630), (105, 15430904), (120, 13502041), (134, 12091380), (140, 11573178), (168, 9644315), (201, 8060920), (210, 7715452), (268, 6045690), (280, 5786589), (335, 4836552), (402, 4030460), (420, 3857726), (469, 3454680), (536, 3022845), (670, 2418276), (804, 2015230), (840, 1928863), (938, 1727340), (1005, 1612184), (1340, 1209138), (1407, 1151560), (1608, 1007615), (1876, 863670), (2010, 806092), (2345, 690936), (2680, 604569), (2814, 575780), (3752, 431835), (4020, 403046), (4690, 345468), (5628, 287890), (7035, 230312), (8040, 201523), (9380, 172734), (11256, 143945), (14070, 115156), (18760, 86367), (28140, 57578), (28789, 56280)]