212561920

素因数分解:

$2^{12}\times 5^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:233

約数の個数: 104

約数和(自身を含む): 520161264

約数和(自身を除く): 307599344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 107, 128, 160, 194, 214, 256, 320, 388, 428, 485, 512, 535, 640, 776, 856, 970, 1024, 1070, 1280, 1552, 1712, 1940, 2048, 2140, 2560, 3104, 3424, 3880, 4096, 4280, 5120, 6208, 6848, 7760, 8560, 10240, 10379, 12416, 13696, 15520, 17120, 20480, 20758, 24832, 27392, 31040, 34240, 41516, 49664, 51895, 54784, 62080, 68480, 83032, 99328, 103790, 109568, 124160, 136960, 166064, 198656, 207580, 219136, 248320, 273920, 332128, 397312, 415160, 438272, 496640, 547840, 664256, 830320, 993280, 1095680, 1328512, 1660640, 1986560, 2191360, 2657024, 3321280, 5314048, 6642560, 10628096, 13285120, 21256192, 26570240, 42512384, 53140480, 106280960, 212561920]

約数ペア:

[(1, 212561920), (2, 106280960), (4, 53140480), (5, 42512384), (8, 26570240), (10, 21256192), (16, 13285120), (20, 10628096), (32, 6642560), (40, 5314048), (64, 3321280), (80, 2657024), (97, 2191360), (107, 1986560), (128, 1660640), (160, 1328512), (194, 1095680), (214, 993280), (256, 830320), (320, 664256), (388, 547840), (428, 496640), (485, 438272), (512, 415160), (535, 397312), (640, 332128), (776, 273920), (856, 248320), (970, 219136), (1024, 207580), (1070, 198656), (1280, 166064), (1552, 136960), (1712, 124160), (1940, 109568), (2048, 103790), (2140, 99328), (2560, 83032), (3104, 68480), (3424, 62080), (3880, 54784), (4096, 51895), (4280, 49664), (5120, 41516), (6208, 34240), (6848, 31040), (7760, 27392), (8560, 24832), (10240, 20758), (10379, 20480), (12416, 17120), (13696, 15520)]