31919784

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 86486400

約数和(自身を除く): 54566616

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 263, 312, 389, 526, 778, 789, 1052, 1167, 1556, 1578, 2104, 2334, 3112, 3156, 3419, 4668, 5057, 6312, 6838, 9336, 10114, 10257, 13676, 15171, 20228, 20514, 27352, 30342, 40456, 41028, 60684, 82056, 102307, 121368, 204614, 306921, 409228, 613842, 818456, 1227684, 1329991, 2455368, 2659982, 3989973, 5319964, 7979946, 10639928, 15959892, 31919784]

約数ペア:

[(1, 31919784), (2, 15959892), (3, 10639928), (4, 7979946), (6, 5319964), (8, 3989973), (12, 2659982), (13, 2455368), (24, 1329991), (26, 1227684), (39, 818456), (52, 613842), (78, 409228), (104, 306921), (156, 204614), (263, 121368), (312, 102307), (389, 82056), (526, 60684), (778, 41028), (789, 40456), (1052, 30342), (1167, 27352), (1556, 20514), (1578, 20228), (2104, 15171), (2334, 13676), (3112, 10257), (3156, 10114), (3419, 9336), (4668, 6838), (5057, 6312)]