20098240

素因数分解:

$2^6\times 5^1\times {\mathrm{181}}^1\times {\mathrm{347}}^1$

素因数の和:545

約数の個数: 56

約数和(自身を含む): 48262032

約数和(自身を除く): 28163792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 181, 320, 347, 362, 694, 724, 905, 1388, 1448, 1735, 1810, 2776, 2896, 3470, 3620, 5552, 5792, 6940, 7240, 11104, 11584, 13880, 14480, 22208, 27760, 28960, 55520, 57920, 62807, 111040, 125614, 251228, 314035, 502456, 628070, 1004912, 1256140, 2009824, 2512280, 4019648, 5024560, 10049120, 20098240]

約数ペア:

[(1, 20098240), (2, 10049120), (4, 5024560), (5, 4019648), (8, 2512280), (10, 2009824), (16, 1256140), (20, 1004912), (32, 628070), (40, 502456), (64, 314035), (80, 251228), (160, 125614), (181, 111040), (320, 62807), (347, 57920), (362, 55520), (694, 28960), (724, 27760), (905, 22208), (1388, 14480), (1448, 13880), (1735, 11584), (1810, 11104), (2776, 7240), (2896, 6940), (3470, 5792), (3620, 5552)]