7748720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 20945088

約数和(自身を除く): 13196368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 137, 140, 202, 274, 280, 404, 505, 548, 560, 685, 707, 808, 959, 1010, 1096, 1370, 1414, 1616, 1918, 2020, 2192, 2740, 2828, 3535, 3836, 4040, 4795, 5480, 5656, 7070, 7672, 8080, 9590, 10960, 11312, 13837, 14140, 15344, 19180, 27674, 28280, 38360, 55348, 56560, 69185, 76720, 96859, 110696, 138370, 193718, 221392, 276740, 387436, 484295, 553480, 774872, 968590, 1106960, 1549744, 1937180, 3874360, 7748720]

約数ペア:

[(1, 7748720), (2, 3874360), (4, 1937180), (5, 1549744), (7, 1106960), (8, 968590), (10, 774872), (14, 553480), (16, 484295), (20, 387436), (28, 276740), (35, 221392), (40, 193718), (56, 138370), (70, 110696), (80, 96859), (101, 76720), (112, 69185), (137, 56560), (140, 55348), (202, 38360), (274, 28280), (280, 27674), (404, 19180), (505, 15344), (548, 14140), (560, 13837), (685, 11312), (707, 10960), (808, 9590), (959, 8080), (1010, 7672), (1096, 7070), (1370, 5656), (1414, 5480), (1616, 4795), (1918, 4040), (2020, 3836), (2192, 3535), (2740, 2828)]