About the Number

28987686

28987685 ← → 28987687

2進数表記:1101110100101000100100110

漢数字表記:二千八百九十八万七千六百八十六

素因数分解:

2 1 × 3 3 × 7 1 × 13 1 × 17 1 × 347 1

素因数の和:395
約数の個数: 128
約数和(自身を含む): 84188160
約数和(自身を除く): 55200474

約数列:
[1, 2, 3, 6, 7, 9, 13, 14, 17, 18, 21, 26, 27, 34, 39, 42, 51, 54, 63, 78, 91, 102, 117, 119, 126, 153, 182, 189, 221, 234, 238, 273, 306, 347, 351, 357, 378, 442, 459, 546, 663, 694, 702, 714, 819, 918, 1041, 1071, 1326, 1547, 1638, 1989, 2082, 2142, 2429, 2457, 3094, 3123, 3213, 3978, 4511, 4641, 4858, 4914, 5899, 5967, 6246, 6426, 7287, 9022, 9282, 9369, 11798, 11934, 13533, 13923, 14574, 17697, 18738, 21861, 27066, 27846, 31577, 35394, 40599, 41293, 41769, 43722, 53091, 63154, 65583, 76687, 81198, 82586, 83538, 94731, 106182, 121797, 123879, 131166, 153374, 159273, 189462, 230061, 243594, 247758, 284193, 318546, 371637, 460122, 536809, 568386, 690183, 743274, 852579, 1073618, 1114911, 1380366, 1610427, 1705158, 2070549, 2229822, 3220854, 4141098, 4831281, 9662562, 14493843, 28987686]

約数ペア:
[(1, 28987686), (2, 14493843), (3, 9662562), (6, 4831281), (7, 4141098), (9, 3220854), (13, 2229822), (14, 2070549), (17, 1705158), (18, 1610427), (21, 1380366), (26, 1114911), (27, 1073618), (34, 852579), (39, 743274), (42, 690183), (51, 568386), (54, 536809), (63, 460122), (78, 371637), (91, 318546), (102, 284193), (117, 247758), (119, 243594), (126, 230061), (153, 189462), (182, 159273), (189, 153374), (221, 131166), (234, 123879), (238, 121797), (273, 106182), (306, 94731), (347, 83538), (351, 82586), (357, 81198), (378, 76687), (442, 65583), (459, 63154), (546, 53091), (663, 43722), (694, 41769), (702, 41293), (714, 40599), (819, 35394), (918, 31577), (1041, 27846), (1071, 27066), (1326, 21861), (1547, 18738), (1638, 17697), (1989, 14574), (2082, 13923), (2142, 13533), (2429, 11934), (2457, 11798), (3094, 9369), (3123, 9282), (3213, 9022), (3978, 7287), (4511, 6426), (4641, 6246), (4858, 5967), (4914, 5899)]

このpageの処理時間: 0.15125799179077148 seconds