31921760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 96

約数和(自身を含む): 82555200

約数和(自身を除く): 50633440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 103, 104, 130, 149, 160, 206, 208, 260, 298, 412, 416, 515, 520, 596, 745, 824, 1030, 1040, 1192, 1339, 1490, 1648, 1937, 2060, 2080, 2384, 2678, 2980, 3296, 3874, 4120, 4768, 5356, 5960, 6695, 7748, 8240, 9685, 10712, 11920, 13390, 15347, 15496, 16480, 19370, 21424, 23840, 26780, 30694, 30992, 38740, 42848, 53560, 61388, 61984, 76735, 77480, 107120, 122776, 153470, 154960, 199511, 214240, 245552, 306940, 309920, 399022, 491104, 613880, 798044, 997555, 1227760, 1596088, 1995110, 2455520, 3192176, 3990220, 6384352, 7980440, 15960880, 31921760]

約数ペア:

[(1, 31921760), (2, 15960880), (4, 7980440), (5, 6384352), (8, 3990220), (10, 3192176), (13, 2455520), (16, 1995110), (20, 1596088), (26, 1227760), (32, 997555), (40, 798044), (52, 613880), (65, 491104), (80, 399022), (103, 309920), (104, 306940), (130, 245552), (149, 214240), (160, 199511), (206, 154960), (208, 153470), (260, 122776), (298, 107120), (412, 77480), (416, 76735), (515, 61984), (520, 61388), (596, 53560), (745, 42848), (824, 38740), (1030, 30992), (1040, 30694), (1192, 26780), (1339, 23840), (1490, 21424), (1648, 19370), (1937, 16480), (2060, 15496), (2080, 15347), (2384, 13390), (2678, 11920), (2980, 10712), (3296, 9685), (3874, 8240), (4120, 7748), (4768, 6695), (5356, 5960)]