81901800

素因数分解:

$2^3\times 3^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{523}}^1$

素因数の和:577

約数の個数: 192

約数和(自身を含む): 292392000

約数和(自身を除く): 210490200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 29, 30, 36, 40, 45, 50, 54, 58, 60, 72, 75, 87, 90, 100, 108, 116, 120, 135, 145, 150, 174, 180, 200, 216, 225, 232, 261, 270, 290, 300, 348, 360, 435, 450, 522, 523, 540, 580, 600, 675, 696, 725, 783, 870, 900, 1044, 1046, 1080, 1160, 1305, 1350, 1450, 1566, 1569, 1740, 1800, 2088, 2092, 2175, 2610, 2615, 2700, 2900, 3132, 3138, 3480, 3915, 4184, 4350, 4707, 5220, 5230, 5400, 5800, 6264, 6276, 6525, 7830, 7845, 8700, 9414, 10440, 10460, 12552, 13050, 13075, 14121, 15167, 15660, 15690, 17400, 18828, 19575, 20920, 23535, 26100, 26150, 28242, 30334, 31320, 31380, 37656, 39150, 39225, 45501, 47070, 52200, 52300, 56484, 60668, 62760, 70605, 75835, 78300, 78450, 91002, 94140, 104600, 112968, 117675, 121336, 136503, 141210, 151670, 156600, 156900, 182004, 188280, 227505, 235350, 273006, 282420, 303340, 313800, 353025, 364008, 379175, 409509, 455010, 470700, 546012, 564840, 606680, 682515, 706050, 758350, 819018, 910020, 941400, 1092024, 1137525, 1365030, 1412100, 1516700, 1638036, 1820040, 2047545, 2275050, 2730060, 2824200, 3033400, 3276072, 3412575, 4095090, 4550100, 5460120, 6825150, 8190180, 9100200, 10237725, 13650300, 16380360, 20475450, 27300600, 40950900, 81901800]

約数ペア:

[(1, 81901800), (2, 40950900), (3, 27300600), (4, 20475450), (5, 16380360), (6, 13650300), (8, 10237725), (9, 9100200), (10, 8190180), (12, 6825150), (15, 5460120), (18, 4550100), (20, 4095090), (24, 3412575), (25, 3276072), (27, 3033400), (29, 2824200), (30, 2730060), (36, 2275050), (40, 2047545), (45, 1820040), (50, 1638036), (54, 1516700), (58, 1412100), (60, 1365030), (72, 1137525), (75, 1092024), (87, 941400), (90, 910020), (100, 819018), (108, 758350), (116, 706050), (120, 682515), (135, 606680), (145, 564840), (150, 546012), (174, 470700), (180, 455010), (200, 409509), (216, 379175), (225, 364008), (232, 353025), (261, 313800), (270, 303340), (290, 282420), (300, 273006), (348, 235350), (360, 227505), (435, 188280), (450, 182004), (522, 156900), (523, 156600), (540, 151670), (580, 141210), (600, 136503), (675, 121336), (696, 117675), (725, 112968), (783, 104600), (870, 94140), (900, 91002), (1044, 78450), (1046, 78300), (1080, 75835), (1160, 70605), (1305, 62760), (1350, 60668), (1450, 56484), (1566, 52300), (1569, 52200), (1740, 47070), (1800, 45501), (2088, 39225), (2092, 39150), (2175, 37656), (2610, 31380), (2615, 31320), (2700, 30334), (2900, 28242), (3132, 26150), (3138, 26100), (3480, 23535), (3915, 20920), (4184, 19575), (4350, 18828), (4707, 17400), (5220, 15690), (5230, 15660), (5400, 15167), (5800, 14121), (6264, 13075), (6276, 13050), (6525, 12552), (7830, 10460), (7845, 10440), (8700, 9414)]