20810774880

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{688187}}^1$

素因数の和:688218

約数の個数: 192

約数和(自身を含む): 83243220480

約数和(自身を除く): 62432445600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 688187, 1376374, 2064561, 2752748, 3440935, 4129122, 4817309, 5505496, 6193683, 6881870, 8258244, 9634618, 10322805, 11010992, 12387366, 13763740, 14451927, 16516488, 18581049, 19269236, 20645610, 22021984, 24086545, 24774732, 27527480, 28903854, 30968415, 33032976, 37162098, 38538472, 41291220, 43355781, 48173090, 49549464, 55054960, 57807708, 61936830, 66065952, 72259635, 74324196, 77076944, 82582440, 86711562, 92905245, 96346180, 99098928, 110109920, 115615416, 123873660, 130067343, 144519270, 148648392, 154153888, 165164880, 173423124, 185810490, 192692360, 198197856, 216778905, 231230832, 247747320, 260134686, 289038540, 297296784, 330329760, 346846248, 371620980, 385384720, 433557810, 462461664, 495494640, 520269372, 578077080, 594593568, 650336715, 693692496, 743241960, 770769440, 867115620, 990989280, 1040538744, 1156154160, 1300673430, 1387384992, 1486483920, 1734231240, 2081077488, 2312308320, 2601346860, 2972967840, 3468462480, 4162154976, 5202693720, 6936924960, 10405387440, 20810774880]

約数ペア:

[(1, 20810774880), (2, 10405387440), (3, 6936924960), (4, 5202693720), (5, 4162154976), (6, 3468462480), (7, 2972967840), (8, 2601346860), (9, 2312308320), (10, 2081077488), (12, 1734231240), (14, 1486483920), (15, 1387384992), (16, 1300673430), (18, 1156154160), (20, 1040538744), (21, 990989280), (24, 867115620), (27, 770769440), (28, 743241960), (30, 693692496), (32, 650336715), (35, 594593568), (36, 578077080), (40, 520269372), (42, 495494640), (45, 462461664), (48, 433557810), (54, 385384720), (56, 371620980), (60, 346846248), (63, 330329760), (70, 297296784), (72, 289038540), (80, 260134686), (84, 247747320), (90, 231230832), (96, 216778905), (105, 198197856), (108, 192692360), (112, 185810490), (120, 173423124), (126, 165164880), (135, 154153888), (140, 148648392), (144, 144519270), (160, 130067343), (168, 123873660), (180, 115615416), (189, 110109920), (210, 99098928), (216, 96346180), (224, 92905245), (240, 86711562), (252, 82582440), (270, 77076944), (280, 74324196), (288, 72259635), (315, 66065952), (336, 61936830), (360, 57807708), (378, 55054960), (420, 49549464), (432, 48173090), (480, 43355781), (504, 41291220), (540, 38538472), (560, 37162098), (630, 33032976), (672, 30968415), (720, 28903854), (756, 27527480), (840, 24774732), (864, 24086545), (945, 22021984), (1008, 20645610), (1080, 19269236), (1120, 18581049), (1260, 16516488), (1440, 14451927), (1512, 13763740), (1680, 12387366), (1890, 11010992), (2016, 10322805), (2160, 9634618), (2520, 8258244), (3024, 6881870), (3360, 6193683), (3780, 5505496), (4320, 4817309), (5040, 4129122), (6048, 3440935), (7560, 2752748), (10080, 2064561), (15120, 1376374), (30240, 688187)]