178908240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{977}}^1$

素因数の和:1109

約数の個数: 160

約数和(自身を含む): 640316160

約数和(自身を除く): 461407920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 109, 112, 120, 140, 168, 210, 218, 240, 280, 327, 336, 420, 436, 545, 560, 654, 763, 840, 872, 977, 1090, 1308, 1526, 1635, 1680, 1744, 1954, 2180, 2289, 2616, 2931, 3052, 3270, 3815, 3908, 4360, 4578, 4885, 5232, 5862, 6104, 6540, 6839, 7630, 7816, 8720, 9156, 9770, 11445, 11724, 12208, 13080, 13678, 14655, 15260, 15632, 18312, 19540, 20517, 22890, 23448, 26160, 27356, 29310, 30520, 34195, 36624, 39080, 41034, 45780, 46896, 54712, 58620, 61040, 68390, 78160, 82068, 91560, 102585, 106493, 109424, 117240, 136780, 164136, 183120, 205170, 212986, 234480, 273560, 319479, 328272, 410340, 425972, 532465, 547120, 638958, 745451, 820680, 851944, 1064930, 1277916, 1490902, 1597395, 1641360, 1703888, 2129860, 2236353, 2555832, 2981804, 3194790, 3727255, 4259720, 4472706, 5111664, 5963608, 6389580, 7454510, 8519440, 8945412, 11181765, 11927216, 12779160, 14909020, 17890824, 22363530, 25558320, 29818040, 35781648, 44727060, 59636080, 89454120, 178908240]

約数ペア:

[(1, 178908240), (2, 89454120), (3, 59636080), (4, 44727060), (5, 35781648), (6, 29818040), (7, 25558320), (8, 22363530), (10, 17890824), (12, 14909020), (14, 12779160), (15, 11927216), (16, 11181765), (20, 8945412), (21, 8519440), (24, 7454510), (28, 6389580), (30, 5963608), (35, 5111664), (40, 4472706), (42, 4259720), (48, 3727255), (56, 3194790), (60, 2981804), (70, 2555832), (80, 2236353), (84, 2129860), (105, 1703888), (109, 1641360), (112, 1597395), (120, 1490902), (140, 1277916), (168, 1064930), (210, 851944), (218, 820680), (240, 745451), (280, 638958), (327, 547120), (336, 532465), (420, 425972), (436, 410340), (545, 328272), (560, 319479), (654, 273560), (763, 234480), (840, 212986), (872, 205170), (977, 183120), (1090, 164136), (1308, 136780), (1526, 117240), (1635, 109424), (1680, 106493), (1744, 102585), (1954, 91560), (2180, 82068), (2289, 78160), (2616, 68390), (2931, 61040), (3052, 58620), (3270, 54712), (3815, 46896), (3908, 45780), (4360, 41034), (4578, 39080), (4885, 36624), (5232, 34195), (5862, 30520), (6104, 29310), (6540, 27356), (6839, 26160), (7630, 23448), (7816, 22890), (8720, 20517), (9156, 19540), (9770, 18312), (11445, 15632), (11724, 15260), (12208, 14655), (13080, 13678)]