19703528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 22632472

約数列:

[1, 2, 4, 8, 13, 26, 29, 47, 52, 58, 94, 104, 116, 139, 188, 232, 278, 376, 377, 556, 611, 754, 1112, 1222, 1363, 1508, 1807, 2444, 2726, 3016, 3614, 4031, 4888, 5452, 6533, 7228, 8062, 10904, 13066, 14456, 16124, 17719, 26132, 32248, 35438, 52264, 52403, 70876, 84929, 104806, 141752, 169858, 189457, 209612, 339716, 378914, 419224, 679432, 757828, 1515656, 2462941, 4925882, 9851764, 19703528]

約数ペア:

[(1, 19703528), (2, 9851764), (4, 4925882), (8, 2462941), (13, 1515656), (26, 757828), (29, 679432), (47, 419224), (52, 378914), (58, 339716), (94, 209612), (104, 189457), (116, 169858), (139, 141752), (188, 104806), (232, 84929), (278, 70876), (376, 52403), (377, 52264), (556, 35438), (611, 32248), (754, 26132), (1112, 17719), (1222, 16124), (1363, 14456), (1508, 13066), (1807, 10904), (2444, 8062), (2726, 7228), (3016, 6533), (3614, 5452), (4031, 4888)]