31117208

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 63622680

約数和(自身を除く): 32505472

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 289, 313, 344, 578, 626, 731, 1156, 1252, 1462, 2312, 2504, 2924, 5321, 5848, 10642, 12427, 13459, 21284, 24854, 26918, 42568, 49708, 53836, 90457, 99416, 107672, 180914, 228803, 361828, 457606, 723656, 915212, 1830424, 3889651, 7779302, 15558604, 31117208]

約数ペア:

[(1, 31117208), (2, 15558604), (4, 7779302), (8, 3889651), (17, 1830424), (34, 915212), (43, 723656), (68, 457606), (86, 361828), (136, 228803), (172, 180914), (289, 107672), (313, 99416), (344, 90457), (578, 53836), (626, 49708), (731, 42568), (1156, 26918), (1252, 24854), (1462, 21284), (2312, 13459), (2504, 12427), (2924, 10642), (5321, 5848)]