20584160

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1013}}^1$

素因数の和:1155

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 28477216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1013, 1016, 1270, 2026, 2032, 2540, 4052, 4064, 5065, 5080, 8104, 10130, 10160, 16208, 20260, 20320, 32416, 40520, 81040, 128651, 162080, 257302, 514604, 643255, 1029208, 1286510, 2058416, 2573020, 4116832, 5146040, 10292080, 20584160]

約数ペア:

[(1, 20584160), (2, 10292080), (4, 5146040), (5, 4116832), (8, 2573020), (10, 2058416), (16, 1286510), (20, 1029208), (32, 643255), (40, 514604), (80, 257302), (127, 162080), (160, 128651), (254, 81040), (508, 40520), (635, 32416), (1013, 20320), (1016, 20260), (1270, 16208), (2026, 10160), (2032, 10130), (2540, 8104), (4052, 5080), (4064, 5065)]