20173856225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{317}}^1\times {\mathrm{1093}}^1$

素因数の和:1574

約数の個数: 48

約数和(自身を含む): 26789075568

約数和(自身を除く): 6615219343

約数列:

[1, 5, 17, 25, 85, 137, 317, 425, 685, 1093, 1585, 2329, 3425, 5389, 5465, 7925, 11645, 18581, 26945, 27325, 43429, 58225, 92905, 134725, 149741, 217145, 346481, 464525, 738293, 748705, 1085725, 1732405, 2545597, 3691465, 3743525, 5890177, 8662025, 12727985, 18457325, 29450885, 47467897, 63639925, 147254425, 237339485, 806954249, 1186697425, 4034771245, 20173856225]

約数ペア:

[(1, 20173856225), (5, 4034771245), (17, 1186697425), (25, 806954249), (85, 237339485), (137, 147254425), (317, 63639925), (425, 47467897), (685, 29450885), (1093, 18457325), (1585, 12727985), (2329, 8662025), (3425, 5890177), (5389, 3743525), (5465, 3691465), (7925, 2545597), (11645, 1732405), (18581, 1085725), (26945, 748705), (27325, 738293), (43429, 464525), (58225, 346481), (92905, 217145), (134725, 149741)]