20768400

素因数分解:

$2^4\times 3^4\times 5^2\times {\mathrm{641}}^1$

素因数の和:671

約数の個数: 150

約数和(自身を含む): 74652402

約数和(自身を除く): 53884002

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 81, 90, 100, 108, 120, 135, 144, 150, 162, 180, 200, 216, 225, 240, 270, 300, 324, 360, 400, 405, 432, 450, 540, 600, 641, 648, 675, 720, 810, 900, 1080, 1200, 1282, 1296, 1350, 1620, 1800, 1923, 2025, 2160, 2564, 2700, 3205, 3240, 3600, 3846, 4050, 5128, 5400, 5769, 6410, 6480, 7692, 8100, 9615, 10256, 10800, 11538, 12820, 15384, 16025, 16200, 17307, 19230, 23076, 25640, 28845, 30768, 32050, 32400, 34614, 38460, 46152, 48075, 51280, 51921, 57690, 64100, 69228, 76920, 86535, 92304, 96150, 103842, 115380, 128200, 138456, 144225, 153840, 173070, 192300, 207684, 230760, 256400, 259605, 276912, 288450, 346140, 384600, 415368, 432675, 461520, 519210, 576900, 692280, 769200, 830736, 865350, 1038420, 1153800, 1298025, 1384560, 1730700, 2076840, 2307600, 2596050, 3461400, 4153680, 5192100, 6922800, 10384200, 20768400]

約数ペア:

[(1, 20768400), (2, 10384200), (3, 6922800), (4, 5192100), (5, 4153680), (6, 3461400), (8, 2596050), (9, 2307600), (10, 2076840), (12, 1730700), (15, 1384560), (16, 1298025), (18, 1153800), (20, 1038420), (24, 865350), (25, 830736), (27, 769200), (30, 692280), (36, 576900), (40, 519210), (45, 461520), (48, 432675), (50, 415368), (54, 384600), (60, 346140), (72, 288450), (75, 276912), (80, 259605), (81, 256400), (90, 230760), (100, 207684), (108, 192300), (120, 173070), (135, 153840), (144, 144225), (150, 138456), (162, 128200), (180, 115380), (200, 103842), (216, 96150), (225, 92304), (240, 86535), (270, 76920), (300, 69228), (324, 64100), (360, 57690), (400, 51921), (405, 51280), (432, 48075), (450, 46152), (540, 38460), (600, 34614), (641, 32400), (648, 32050), (675, 30768), (720, 28845), (810, 25640), (900, 23076), (1080, 19230), (1200, 17307), (1282, 16200), (1296, 16025), (1350, 15384), (1620, 12820), (1800, 11538), (1923, 10800), (2025, 10256), (2160, 9615), (2564, 8100), (2700, 7692), (3205, 6480), (3240, 6410), (3600, 5769), (3846, 5400), (4050, 5128)]