19995290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{6967}}^1$

素因数の和:7022

約数の個数: 32

約数和(自身を含む): 42142464

約数和(自身を除く): 22147174

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870, 6967, 13934, 34835, 48769, 69670, 97538, 243845, 285647, 487690, 571294, 1428235, 1999529, 2856470, 3999058, 9997645, 19995290]

約数ペア:

[(1, 19995290), (2, 9997645), (5, 3999058), (7, 2856470), (10, 1999529), (14, 1428235), (35, 571294), (41, 487690), (70, 285647), (82, 243845), (205, 97538), (287, 69670), (410, 48769), (574, 34835), (1435, 13934), (2870, 6967)]