1215440120

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1\times {\mathrm{2137}}^1$

素因数の和:2448

約数の個数: 64

約数和(自身を含む): 2793938400

約数和(自身を除く): 1578498280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 241, 295, 472, 482, 590, 964, 1180, 1205, 1928, 2137, 2360, 2410, 4274, 4820, 8548, 9640, 10685, 14219, 17096, 21370, 28438, 42740, 56876, 71095, 85480, 113752, 126083, 142190, 252166, 284380, 504332, 515017, 568760, 630415, 1008664, 1030034, 1260830, 2060068, 2521660, 2575085, 4120136, 5043320, 5150170, 10300340, 20600680, 30386003, 60772006, 121544012, 151930015, 243088024, 303860030, 607720060, 1215440120]

約数ペア:

[(1, 1215440120), (2, 607720060), (4, 303860030), (5, 243088024), (8, 151930015), (10, 121544012), (20, 60772006), (40, 30386003), (59, 20600680), (118, 10300340), (236, 5150170), (241, 5043320), (295, 4120136), (472, 2575085), (482, 2521660), (590, 2060068), (964, 1260830), (1180, 1030034), (1205, 1008664), (1928, 630415), (2137, 568760), (2360, 515017), (2410, 504332), (4274, 284380), (4820, 252166), (8548, 142190), (9640, 126083), (10685, 113752), (14219, 85480), (17096, 71095), (21370, 56876), (28438, 42740)]