21616560

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4289}}^1$

素因数の和:4315

約数の個数: 120

約数和(自身を含む): 82985760

約数和(自身を除く): 61369200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 4289, 5040, 8578, 12867, 17156, 21445, 25734, 30023, 34312, 38601, 42890, 51468, 60046, 64335, 68624, 77202, 85780, 90069, 102936, 120092, 128670, 150115, 154404, 171560, 180138, 193005, 205872, 240184, 257340, 270207, 300230, 308808, 343120, 360276, 386010, 450345, 480368, 514680, 540414, 600460, 617616, 720552, 772020, 900690, 1029360, 1080828, 1200920, 1351035, 1441104, 1544040, 1801380, 2161656, 2401840, 2702070, 3088080, 3602760, 4323312, 5404140, 7205520, 10808280, 21616560]

約数ペア:

[(1, 21616560), (2, 10808280), (3, 7205520), (4, 5404140), (5, 4323312), (6, 3602760), (7, 3088080), (8, 2702070), (9, 2401840), (10, 2161656), (12, 1801380), (14, 1544040), (15, 1441104), (16, 1351035), (18, 1200920), (20, 1080828), (21, 1029360), (24, 900690), (28, 772020), (30, 720552), (35, 617616), (36, 600460), (40, 540414), (42, 514680), (45, 480368), (48, 450345), (56, 386010), (60, 360276), (63, 343120), (70, 308808), (72, 300230), (80, 270207), (84, 257340), (90, 240184), (105, 205872), (112, 193005), (120, 180138), (126, 171560), (140, 154404), (144, 150115), (168, 128670), (180, 120092), (210, 102936), (240, 90069), (252, 85780), (280, 77202), (315, 68624), (336, 64335), (360, 60046), (420, 51468), (504, 42890), (560, 38601), (630, 34312), (720, 30023), (840, 25734), (1008, 21445), (1260, 17156), (1680, 12867), (2520, 8578), (4289, 5040)]