20840400

素因数分解:

$2^4\times 3^2\times 5^2\times 7^1\times {\mathrm{827}}^1$

素因数の和:858

約数の個数: 180

約数和(自身を含む): 82753632

約数和(自身を除く): 61913232

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 105, 112, 120, 126, 140, 144, 150, 168, 175, 180, 200, 210, 225, 240, 252, 280, 300, 315, 336, 350, 360, 400, 420, 450, 504, 525, 560, 600, 630, 700, 720, 827, 840, 900, 1008, 1050, 1200, 1260, 1400, 1575, 1654, 1680, 1800, 2100, 2481, 2520, 2800, 3150, 3308, 3600, 4135, 4200, 4962, 5040, 5789, 6300, 6616, 7443, 8270, 8400, 9924, 11578, 12405, 12600, 13232, 14886, 16540, 17367, 19848, 20675, 23156, 24810, 25200, 28945, 29772, 33080, 34734, 37215, 39696, 41350, 46312, 49620, 52101, 57890, 59544, 62025, 66160, 69468, 74430, 82700, 86835, 92624, 99240, 104202, 115780, 119088, 124050, 138936, 144725, 148860, 165400, 173670, 186075, 198480, 208404, 231560, 248100, 260505, 277872, 289450, 297720, 330800, 347340, 372150, 416808, 434175, 463120, 496200, 521010, 578900, 595440, 694680, 744300, 833616, 868350, 992400, 1042020, 1157800, 1302525, 1389360, 1488600, 1736700, 2084040, 2315600, 2605050, 2977200, 3473400, 4168080, 5210100, 6946800, 10420200, 20840400]

約数ペア:

[(1, 20840400), (2, 10420200), (3, 6946800), (4, 5210100), (5, 4168080), (6, 3473400), (7, 2977200), (8, 2605050), (9, 2315600), (10, 2084040), (12, 1736700), (14, 1488600), (15, 1389360), (16, 1302525), (18, 1157800), (20, 1042020), (21, 992400), (24, 868350), (25, 833616), (28, 744300), (30, 694680), (35, 595440), (36, 578900), (40, 521010), (42, 496200), (45, 463120), (48, 434175), (50, 416808), (56, 372150), (60, 347340), (63, 330800), (70, 297720), (72, 289450), (75, 277872), (80, 260505), (84, 248100), (90, 231560), (100, 208404), (105, 198480), (112, 186075), (120, 173670), (126, 165400), (140, 148860), (144, 144725), (150, 138936), (168, 124050), (175, 119088), (180, 115780), (200, 104202), (210, 99240), (225, 92624), (240, 86835), (252, 82700), (280, 74430), (300, 69468), (315, 66160), (336, 62025), (350, 59544), (360, 57890), (400, 52101), (420, 49620), (450, 46312), (504, 41350), (525, 39696), (560, 37215), (600, 34734), (630, 33080), (700, 29772), (720, 28945), (827, 25200), (840, 24810), (900, 23156), (1008, 20675), (1050, 19848), (1200, 17367), (1260, 16540), (1400, 14886), (1575, 13232), (1654, 12600), (1680, 12405), (1800, 11578), (2100, 9924), (2481, 8400), (2520, 8270), (2800, 7443), (3150, 6616), (3308, 6300), (3600, 5789), (4135, 5040), (4200, 4962)]