20595490

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 38121840

約数和(自身を除く): 17526350

約数列:

[1, 2, 5, 10, 73, 89, 146, 178, 317, 365, 445, 634, 730, 890, 1585, 3170, 6497, 12994, 23141, 28213, 32485, 46282, 56426, 64970, 115705, 141065, 231410, 282130, 2059549, 4119098, 10297745, 20595490]

約数ペア:

[(1, 20595490), (2, 10297745), (5, 4119098), (10, 2059549), (73, 282130), (89, 231410), (146, 141065), (178, 115705), (317, 64970), (365, 56426), (445, 46282), (634, 32485), (730, 28213), (890, 23141), (1585, 12994), (3170, 6497)]