18915540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1553}}^1$

素因数の和:1601

約数の個数: 96

約数和(自身を含む): 62657280

約数和(自身を除く): 43741740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1553, 1740, 2030, 2436, 3045, 3106, 4060, 4659, 6090, 6212, 7765, 9318, 10871, 12180, 15530, 18636, 21742, 23295, 31060, 32613, 43484, 45037, 46590, 54355, 65226, 90074, 93180, 108710, 130452, 135111, 163065, 180148, 217420, 225185, 270222, 315259, 326130, 450370, 540444, 630518, 652260, 675555, 900740, 945777, 1261036, 1351110, 1576295, 1891554, 2702220, 3152590, 3783108, 4728885, 6305180, 9457770, 18915540]

約数ペア:

[(1, 18915540), (2, 9457770), (3, 6305180), (4, 4728885), (5, 3783108), (6, 3152590), (7, 2702220), (10, 1891554), (12, 1576295), (14, 1351110), (15, 1261036), (20, 945777), (21, 900740), (28, 675555), (29, 652260), (30, 630518), (35, 540444), (42, 450370), (58, 326130), (60, 315259), (70, 270222), (84, 225185), (87, 217420), (105, 180148), (116, 163065), (140, 135111), (145, 130452), (174, 108710), (203, 93180), (210, 90074), (290, 65226), (348, 54355), (406, 46590), (420, 45037), (435, 43484), (580, 32613), (609, 31060), (812, 23295), (870, 21742), (1015, 18636), (1218, 15530), (1553, 12180), (1740, 10871), (2030, 9318), (2436, 7765), (3045, 6212), (3106, 6090), (4060, 4659)]