39921840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{89}}^2$

素因数の和:204

約数の個数: 180

約数和(自身を含む): 154964784

約数和(自身を除く): 115042944

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, 89, 90, 105, 112, 120, 126, 140, 144, 168, 178, 180, 210, 240, 252, 267, 280, 315, 336, 356, 360, 420, 445, 504, 534, 560, 623, 630, 712, 720, 801, 840, 890, 1008, 1068, 1246, 1260, 1335, 1424, 1602, 1680, 1780, 1869, 2136, 2492, 2520, 2670, 3115, 3204, 3560, 3738, 4005, 4272, 4984, 5040, 5340, 5607, 6230, 6408, 7120, 7476, 7921, 8010, 9345, 9968, 10680, 11214, 12460, 12816, 14952, 15842, 16020, 18690, 21360, 22428, 23763, 24920, 28035, 29904, 31684, 32040, 37380, 39605, 44856, 47526, 49840, 55447, 56070, 63368, 64080, 71289, 74760, 79210, 89712, 95052, 110894, 112140, 118815, 126736, 142578, 149520, 158420, 166341, 190104, 221788, 224280, 237630, 277235, 285156, 316840, 332682, 356445, 380208, 443576, 448560, 475260, 499023, 554470, 570312, 633680, 665364, 712890, 831705, 887152, 950520, 998046, 1108940, 1140624, 1330728, 1425780, 1663410, 1901040, 1996092, 2217880, 2495115, 2661456, 2851560, 3326820, 3992184, 4435760, 4990230, 5703120, 6653640, 7984368, 9980460, 13307280, 19960920, 39921840]

約数ペア:

[(1, 39921840), (2, 19960920), (3, 13307280), (4, 9980460), (5, 7984368), (6, 6653640), (7, 5703120), (8, 4990230), (9, 4435760), (10, 3992184), (12, 3326820), (14, 2851560), (15, 2661456), (16, 2495115), (18, 2217880), (20, 1996092), (21, 1901040), (24, 1663410), (28, 1425780), (30, 1330728), (35, 1140624), (36, 1108940), (40, 998046), (42, 950520), (45, 887152), (48, 831705), (56, 712890), (60, 665364), (63, 633680), (70, 570312), (72, 554470), (80, 499023), (84, 475260), (89, 448560), (90, 443576), (105, 380208), (112, 356445), (120, 332682), (126, 316840), (140, 285156), (144, 277235), (168, 237630), (178, 224280), (180, 221788), (210, 190104), (240, 166341), (252, 158420), (267, 149520), (280, 142578), (315, 126736), (336, 118815), (356, 112140), (360, 110894), (420, 95052), (445, 89712), (504, 79210), (534, 74760), (560, 71289), (623, 64080), (630, 63368), (712, 56070), (720, 55447), (801, 49840), (840, 47526), (890, 44856), (1008, 39605), (1068, 37380), (1246, 32040), (1260, 31684), (1335, 29904), (1424, 28035), (1602, 24920), (1680, 23763), (1780, 22428), (1869, 21360), (2136, 18690), (2492, 16020), (2520, 15842), (2670, 14952), (3115, 12816), (3204, 12460), (3560, 11214), (3738, 10680), (4005, 9968), (4272, 9345), (4984, 8010), (5040, 7921), (5340, 7476), (5607, 7120), (6230, 6408)]