20795680

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5651}}^1$

素因数の和:5689

約数の個数: 48

約数和(自身を含む): 51274944

約数和(自身を除く): 30479264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5651, 11302, 22604, 28255, 45208, 56510, 90416, 113020, 129973, 180832, 226040, 259946, 452080, 519892, 649865, 904160, 1039784, 1299730, 2079568, 2599460, 4159136, 5198920, 10397840, 20795680]

約数ペア:

[(1, 20795680), (2, 10397840), (4, 5198920), (5, 4159136), (8, 2599460), (10, 2079568), (16, 1299730), (20, 1039784), (23, 904160), (32, 649865), (40, 519892), (46, 452080), (80, 259946), (92, 226040), (115, 180832), (160, 129973), (184, 113020), (230, 90416), (368, 56510), (460, 45208), (736, 28255), (920, 22604), (1840, 11302), (3680, 5651)]