219577880

素因数分解:

$2^3\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{5419}}^1$

素因数の和:6443

約数の個数: 32

約数和(自身を含む): 494629200

約数和(自身を除く): 275051320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1013, 2026, 4052, 5065, 5419, 8104, 10130, 10838, 20260, 21676, 27095, 40520, 43352, 54190, 108380, 216760, 5489447, 10978894, 21957788, 27447235, 43915576, 54894470, 109788940, 219577880]

約数ペア:

[(1, 219577880), (2, 109788940), (4, 54894470), (5, 43915576), (8, 27447235), (10, 21957788), (20, 10978894), (40, 5489447), (1013, 216760), (2026, 108380), (4052, 54190), (5065, 43352), (5419, 40520), (8104, 27095), (10130, 21676), (10838, 20260)]