138709760

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 385874496

約数和(自身を除く): 247164736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 113, 128, 137, 140, 160, 224, 226, 256, 274, 280, 320, 448, 452, 548, 560, 565, 640, 685, 791, 896, 904, 959, 1096, 1120, 1130, 1280, 1370, 1582, 1792, 1808, 1918, 2192, 2240, 2260, 2740, 3164, 3616, 3836, 3955, 4384, 4480, 4520, 4795, 5480, 6328, 7232, 7672, 7910, 8768, 8960, 9040, 9590, 10960, 12656, 14464, 15344, 15481, 15820, 17536, 18080, 19180, 21920, 25312, 28928, 30688, 30962, 31640, 35072, 36160, 38360, 43840, 50624, 61376, 61924, 63280, 72320, 76720, 77405, 87680, 101248, 108367, 122752, 123848, 126560, 144640, 153440, 154810, 175360, 202496, 216734, 245504, 247696, 253120, 306880, 309620, 433468, 495392, 506240, 541835, 613760, 619240, 866936, 990784, 1012480, 1083670, 1227520, 1238480, 1733872, 1981568, 2167340, 2476960, 3467744, 3963136, 4334680, 4953920, 6935488, 8669360, 9907840, 13870976, 17338720, 19815680, 27741952, 34677440, 69354880, 138709760]

約数ペア:

[(1, 138709760), (2, 69354880), (4, 34677440), (5, 27741952), (7, 19815680), (8, 17338720), (10, 13870976), (14, 9907840), (16, 8669360), (20, 6935488), (28, 4953920), (32, 4334680), (35, 3963136), (40, 3467744), (56, 2476960), (64, 2167340), (70, 1981568), (80, 1733872), (112, 1238480), (113, 1227520), (128, 1083670), (137, 1012480), (140, 990784), (160, 866936), (224, 619240), (226, 613760), (256, 541835), (274, 506240), (280, 495392), (320, 433468), (448, 309620), (452, 306880), (548, 253120), (560, 247696), (565, 245504), (640, 216734), (685, 202496), (791, 175360), (896, 154810), (904, 153440), (959, 144640), (1096, 126560), (1120, 123848), (1130, 122752), (1280, 108367), (1370, 101248), (1582, 87680), (1792, 77405), (1808, 76720), (1918, 72320), (2192, 63280), (2240, 61924), (2260, 61376), (2740, 50624), (3164, 43840), (3616, 38360), (3836, 36160), (3955, 35072), (4384, 31640), (4480, 30962), (4520, 30688), (4795, 28928), (5480, 25312), (6328, 21920), (7232, 19180), (7672, 18080), (7910, 17536), (8768, 15820), (8960, 15481), (9040, 15344), (9590, 14464), (10960, 12656)]