20785800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^3\times {\mathrm{101}}^1$

素因数の和:141

約数の個数: 192

約数和(自身を含む): 75888000

約数和(自身を除く): 55102200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 101, 105, 120, 140, 147, 150, 168, 175, 196, 200, 202, 210, 245, 280, 294, 300, 303, 343, 350, 392, 404, 420, 490, 505, 525, 588, 600, 606, 686, 700, 707, 735, 808, 840, 980, 1010, 1029, 1050, 1176, 1212, 1225, 1372, 1400, 1414, 1470, 1515, 1715, 1960, 2020, 2058, 2100, 2121, 2424, 2450, 2525, 2744, 2828, 2940, 3030, 3430, 3535, 3675, 4040, 4116, 4200, 4242, 4900, 4949, 5050, 5145, 5656, 5880, 6060, 6860, 7070, 7350, 7575, 8232, 8484, 8575, 9800, 9898, 10100, 10290, 10605, 12120, 13720, 14140, 14700, 14847, 15150, 16968, 17150, 17675, 19796, 20200, 20580, 21210, 24745, 25725, 28280, 29400, 29694, 30300, 34300, 34643, 35350, 39592, 41160, 42420, 49490, 51450, 53025, 59388, 60600, 68600, 69286, 70700, 74235, 84840, 98980, 102900, 103929, 106050, 118776, 123725, 138572, 141400, 148470, 173215, 197960, 205800, 207858, 212100, 247450, 277144, 296940, 346430, 371175, 415716, 424200, 494900, 519645, 593880, 692860, 742350, 831432, 866075, 989800, 1039290, 1385720, 1484700, 1732150, 2078580, 2598225, 2969400, 3464300, 4157160, 5196450, 6928600, 10392900, 20785800]

約数ペア:

[(1, 20785800), (2, 10392900), (3, 6928600), (4, 5196450), (5, 4157160), (6, 3464300), (7, 2969400), (8, 2598225), (10, 2078580), (12, 1732150), (14, 1484700), (15, 1385720), (20, 1039290), (21, 989800), (24, 866075), (25, 831432), (28, 742350), (30, 692860), (35, 593880), (40, 519645), (42, 494900), (49, 424200), (50, 415716), (56, 371175), (60, 346430), (70, 296940), (75, 277144), (84, 247450), (98, 212100), (100, 207858), (101, 205800), (105, 197960), (120, 173215), (140, 148470), (147, 141400), (150, 138572), (168, 123725), (175, 118776), (196, 106050), (200, 103929), (202, 102900), (210, 98980), (245, 84840), (280, 74235), (294, 70700), (300, 69286), (303, 68600), (343, 60600), (350, 59388), (392, 53025), (404, 51450), (420, 49490), (490, 42420), (505, 41160), (525, 39592), (588, 35350), (600, 34643), (606, 34300), (686, 30300), (700, 29694), (707, 29400), (735, 28280), (808, 25725), (840, 24745), (980, 21210), (1010, 20580), (1029, 20200), (1050, 19796), (1176, 17675), (1212, 17150), (1225, 16968), (1372, 15150), (1400, 14847), (1414, 14700), (1470, 14140), (1515, 13720), (1715, 12120), (1960, 10605), (2020, 10290), (2058, 10100), (2100, 9898), (2121, 9800), (2424, 8575), (2450, 8484), (2525, 8232), (2744, 7575), (2828, 7350), (2940, 7070), (3030, 6860), (3430, 6060), (3535, 5880), (3675, 5656), (4040, 5145), (4116, 5050), (4200, 4949), (4242, 4900)]