21987333760

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{1933}}^1\times {\mathrm{2539}}^1$

素因数の和:4498

約数の個数: 128

約数和(自身を含む): 60127286400

約数和(自身を除く): 38139952640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 1933, 2240, 2539, 3866, 4480, 5078, 7732, 9665, 10156, 12695, 13531, 15464, 17773, 19330, 20312, 25390, 27062, 30928, 35546, 38660, 40624, 50780, 54124, 61856, 67655, 71092, 77320, 81248, 88865, 101560, 108248, 123712, 135310, 142184, 154640, 162496, 177730, 203120, 216496, 247424, 270620, 284368, 309280, 324992, 355460, 406240, 432992, 541240, 568736, 618560, 710920, 812480, 865984, 1082480, 1137472, 1237120, 1421840, 1624960, 1731968, 2164960, 2274944, 2843680, 4329920, 4907887, 5687360, 8659840, 9815774, 11374720, 19631548, 24539435, 34355209, 39263096, 49078870, 68710418, 78526192, 98157740, 137420836, 157052384, 171776045, 196315480, 274841672, 314104768, 343552090, 392630960, 549683344, 628209536, 687104180, 785261920, 1099366688, 1374208360, 1570523840, 2198733376, 2748416720, 3141047680, 4397466752, 5496833440, 10993666880, 21987333760]

約数ペア:

[(1, 21987333760), (2, 10993666880), (4, 5496833440), (5, 4397466752), (7, 3141047680), (8, 2748416720), (10, 2198733376), (14, 1570523840), (16, 1374208360), (20, 1099366688), (28, 785261920), (32, 687104180), (35, 628209536), (40, 549683344), (56, 392630960), (64, 343552090), (70, 314104768), (80, 274841672), (112, 196315480), (128, 171776045), (140, 157052384), (160, 137420836), (224, 98157740), (280, 78526192), (320, 68710418), (448, 49078870), (560, 39263096), (640, 34355209), (896, 24539435), (1120, 19631548), (1933, 11374720), (2240, 9815774), (2539, 8659840), (3866, 5687360), (4480, 4907887), (5078, 4329920), (7732, 2843680), (9665, 2274944), (10156, 2164960), (12695, 1731968), (13531, 1624960), (15464, 1421840), (17773, 1237120), (19330, 1137472), (20312, 1082480), (25390, 865984), (27062, 812480), (30928, 710920), (35546, 618560), (38660, 568736), (40624, 541240), (50780, 432992), (54124, 406240), (61856, 355460), (67655, 324992), (71092, 309280), (77320, 284368), (81248, 270620), (88865, 247424), (101560, 216496), (108248, 203120), (123712, 177730), (135310, 162496), (142184, 154640)]