1285202480

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{787}}^1$

素因数の和:1086

約数の個数: 80

約数和(自身を含む): 3033957600

約数和(自身を除く): 1748755120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 149, 274, 298, 548, 596, 685, 745, 787, 1096, 1192, 1370, 1490, 1574, 2192, 2384, 2740, 2980, 3148, 3935, 5480, 5960, 6296, 7870, 10960, 11920, 12592, 15740, 20413, 31480, 40826, 62960, 81652, 102065, 107819, 117263, 163304, 204130, 215638, 234526, 326608, 408260, 431276, 469052, 539095, 586315, 816520, 862552, 938104, 1078190, 1172630, 1633040, 1725104, 1876208, 2156380, 2345260, 4312760, 4690520, 8625520, 9381040, 16065031, 32130062, 64260124, 80325155, 128520248, 160650310, 257040496, 321300620, 642601240, 1285202480]

約数ペア:

[(1, 1285202480), (2, 642601240), (4, 321300620), (5, 257040496), (8, 160650310), (10, 128520248), (16, 80325155), (20, 64260124), (40, 32130062), (80, 16065031), (137, 9381040), (149, 8625520), (274, 4690520), (298, 4312760), (548, 2345260), (596, 2156380), (685, 1876208), (745, 1725104), (787, 1633040), (1096, 1172630), (1192, 1078190), (1370, 938104), (1490, 862552), (1574, 816520), (2192, 586315), (2384, 539095), (2740, 469052), (2980, 431276), (3148, 408260), (3935, 326608), (5480, 234526), (5960, 215638), (6296, 204130), (7870, 163304), (10960, 117263), (11920, 107819), (12592, 102065), (15740, 81652), (20413, 62960), (31480, 40826)]