28678760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65179}}^1$

素因数の和:65201

約数の個数: 32

約数和(自身を含む): 70394400

約数和(自身を除く): 41715640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65179, 130358, 260716, 325895, 521432, 651790, 716969, 1303580, 1433938, 2607160, 2867876, 3584845, 5735752, 7169690, 14339380, 28678760]

約数ペア:

[(1, 28678760), (2, 14339380), (4, 7169690), (5, 5735752), (8, 3584845), (10, 2867876), (11, 2607160), (20, 1433938), (22, 1303580), (40, 716969), (44, 651790), (55, 521432), (88, 325895), (110, 260716), (220, 130358), (440, 65179)]