81216240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1667}}^1$

素因数の和:1719

約数の個数: 160

約数和(自身を含む): 297838080

約数和(自身を除く): 216621840

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, 420, 435, 464, 560, 580, 609, 696, 812, 840, 870, 1015, 1160, 1218, 1392, 1624, 1667, 1680, 1740, 2030, 2320, 2436, 3045, 3248, 3334, 3480, 4060, 4872, 5001, 6090, 6668, 6960, 8120, 8335, 9744, 10002, 11669, 12180, 13336, 16240, 16670, 20004, 23338, 24360, 25005, 26672, 33340, 35007, 40008, 46676, 48343, 48720, 50010, 58345, 66680, 70014, 80016, 93352, 96686, 100020, 116690, 133360, 140028, 145029, 175035, 186704, 193372, 200040, 233380, 241715, 280056, 290058, 338401, 350070, 386744, 400080, 466760, 483430, 560112, 580116, 676802, 700140, 725145, 773488, 933520, 966860, 1015203, 1160232, 1353604, 1400280, 1450290, 1692005, 1933720, 2030406, 2320464, 2707208, 2800560, 2900580, 3384010, 3867440, 4060812, 5076015, 5414416, 5801160, 6768020, 8121624, 10152030, 11602320, 13536040, 16243248, 20304060, 27072080, 40608120, 81216240]

約数ペア:

[(1, 81216240), (2, 40608120), (3, 27072080), (4, 20304060), (5, 16243248), (6, 13536040), (7, 11602320), (8, 10152030), (10, 8121624), (12, 6768020), (14, 5801160), (15, 5414416), (16, 5076015), (20, 4060812), (21, 3867440), (24, 3384010), (28, 2900580), (29, 2800560), (30, 2707208), (35, 2320464), (40, 2030406), (42, 1933720), (48, 1692005), (56, 1450290), (58, 1400280), (60, 1353604), (70, 1160232), (80, 1015203), (84, 966860), (87, 933520), (105, 773488), (112, 725145), (116, 700140), (120, 676802), (140, 580116), (145, 560112), (168, 483430), (174, 466760), (203, 400080), (210, 386744), (232, 350070), (240, 338401), (280, 290058), (290, 280056), (336, 241715), (348, 233380), (406, 200040), (420, 193372), (435, 186704), (464, 175035), (560, 145029), (580, 140028), (609, 133360), (696, 116690), (812, 100020), (840, 96686), (870, 93352), (1015, 80016), (1160, 70014), (1218, 66680), (1392, 58345), (1624, 50010), (1667, 48720), (1680, 48343), (1740, 46676), (2030, 40008), (2320, 35007), (2436, 33340), (3045, 26672), (3248, 25005), (3334, 24360), (3480, 23338), (4060, 20004), (4872, 16670), (5001, 16240), (6090, 13336), (6668, 12180), (6960, 11669), (8120, 10002), (8335, 9744)]