17992520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4943}}^1$

素因数の和:4974

約数の個数: 64

約数和(自身を含む): 49835520

約数和(自身を除く): 31843000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 4943, 9886, 19772, 24715, 34601, 39544, 49430, 64259, 69202, 98860, 128518, 138404, 173005, 197720, 257036, 276808, 321295, 346010, 449813, 514072, 642590, 692020, 899626, 1285180, 1384040, 1799252, 2249065, 2570360, 3598504, 4498130, 8996260, 17992520]

約数ペア:

[(1, 17992520), (2, 8996260), (4, 4498130), (5, 3598504), (7, 2570360), (8, 2249065), (10, 1799252), (13, 1384040), (14, 1285180), (20, 899626), (26, 692020), (28, 642590), (35, 514072), (40, 449813), (52, 346010), (56, 321295), (65, 276808), (70, 257036), (91, 197720), (104, 173005), (130, 138404), (140, 128518), (182, 98860), (260, 69202), (280, 64259), (364, 49430), (455, 39544), (520, 34601), (728, 24715), (910, 19772), (1820, 9886), (3640, 4943)]