20192968720

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{16447}}^1$

素因数の和:16712

約数の個数: 80

約数和(自身を含む): 47725516800

約数和(自身を除く): 27532548080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 149, 206, 298, 412, 515, 596, 745, 824, 1030, 1192, 1490, 1648, 2060, 2384, 2980, 4120, 5960, 8240, 11920, 15347, 16447, 30694, 32894, 61388, 65788, 76735, 82235, 122776, 131576, 153470, 164470, 245552, 263152, 306940, 328940, 613880, 657880, 1227760, 1315760, 1694041, 2450603, 3388082, 4901206, 6776164, 8470205, 9802412, 12253015, 13552328, 16940410, 19604824, 24506030, 27104656, 33880820, 39209648, 49012060, 67761640, 98024120, 135523280, 196048240, 252412109, 504824218, 1009648436, 1262060545, 2019296872, 2524121090, 4038593744, 5048242180, 10096484360, 20192968720]

約数ペア:

[(1, 20192968720), (2, 10096484360), (4, 5048242180), (5, 4038593744), (8, 2524121090), (10, 2019296872), (16, 1262060545), (20, 1009648436), (40, 504824218), (80, 252412109), (103, 196048240), (149, 135523280), (206, 98024120), (298, 67761640), (412, 49012060), (515, 39209648), (596, 33880820), (745, 27104656), (824, 24506030), (1030, 19604824), (1192, 16940410), (1490, 13552328), (1648, 12253015), (2060, 9802412), (2384, 8470205), (2980, 6776164), (4120, 4901206), (5960, 3388082), (8240, 2450603), (11920, 1694041), (15347, 1315760), (16447, 1227760), (30694, 657880), (32894, 613880), (61388, 328940), (65788, 306940), (76735, 263152), (82235, 245552), (122776, 164470), (131576, 153470)]