20896160

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2141}}^1$

素因数の和:2217

約数の個数: 48

約数和(自身を含む): 50199912

約数和(自身を除く): 29303752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2141, 2440, 4282, 4880, 8564, 9760, 10705, 17128, 21410, 34256, 42820, 68512, 85640, 130601, 171280, 261202, 342560, 522404, 653005, 1044808, 1306010, 2089616, 2612020, 4179232, 5224040, 10448080, 20896160]

約数ペア:

[(1, 20896160), (2, 10448080), (4, 5224040), (5, 4179232), (8, 2612020), (10, 2089616), (16, 1306010), (20, 1044808), (32, 653005), (40, 522404), (61, 342560), (80, 261202), (122, 171280), (160, 130601), (244, 85640), (305, 68512), (488, 42820), (610, 34256), (976, 21410), (1220, 17128), (1952, 10705), (2141, 9760), (2440, 8564), (4282, 4880)]