20413680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:471

約数の個数: 160

約数和(自身を含む): 74995200

約数和(自身を除く): 54581520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 35, 40, 42, 48, 56, 58, 60, 70, 80, 84, 87, 105, 112, 116, 120, 140, 145, 168, 174, 203, 210, 232, 240, 280, 290, 336, 348, 406, 419, 420, 435, 464, 560, 580, 609, 696, 812, 838, 840, 870, 1015, 1160, 1218, 1257, 1392, 1624, 1676, 1680, 1740, 2030, 2095, 2320, 2436, 2514, 2933, 3045, 3248, 3352, 3480, 4060, 4190, 4872, 5028, 5866, 6090, 6285, 6704, 6960, 8120, 8380, 8799, 9744, 10056, 11732, 12151, 12180, 12570, 14665, 16240, 16760, 17598, 20112, 23464, 24302, 24360, 25140, 29330, 33520, 35196, 36453, 43995, 46928, 48604, 48720, 50280, 58660, 60755, 70392, 72906, 85057, 87990, 97208, 100560, 117320, 121510, 140784, 145812, 170114, 175980, 182265, 194416, 234640, 243020, 255171, 291624, 340228, 351960, 364530, 425285, 486040, 510342, 583248, 680456, 703920, 729060, 850570, 972080, 1020684, 1275855, 1360912, 1458120, 1701140, 2041368, 2551710, 2916240, 3402280, 4082736, 5103420, 6804560, 10206840, 20413680]

約数ペア:

[(1, 20413680), (2, 10206840), (3, 6804560), (4, 5103420), (5, 4082736), (6, 3402280), (7, 2916240), (8, 2551710), (10, 2041368), (12, 1701140), (14, 1458120), (15, 1360912), (16, 1275855), (20, 1020684), (21, 972080), (24, 850570), (28, 729060), (29, 703920), (30, 680456), (35, 583248), (40, 510342), (42, 486040), (48, 425285), (56, 364530), (58, 351960), (60, 340228), (70, 291624), (80, 255171), (84, 243020), (87, 234640), (105, 194416), (112, 182265), (116, 175980), (120, 170114), (140, 145812), (145, 140784), (168, 121510), (174, 117320), (203, 100560), (210, 97208), (232, 87990), (240, 85057), (280, 72906), (290, 70392), (336, 60755), (348, 58660), (406, 50280), (419, 48720), (420, 48604), (435, 46928), (464, 43995), (560, 36453), (580, 35196), (609, 33520), (696, 29330), (812, 25140), (838, 24360), (840, 24302), (870, 23464), (1015, 20112), (1160, 17598), (1218, 16760), (1257, 16240), (1392, 14665), (1624, 12570), (1676, 12180), (1680, 12151), (1740, 11732), (2030, 10056), (2095, 9744), (2320, 8799), (2436, 8380), (2514, 8120), (2933, 6960), (3045, 6704), (3248, 6285), (3352, 6090), (3480, 5866), (4060, 5028), (4190, 4872)]