81393568

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2269}}^1$

素因数の和:2357

約数の個数: 48

約数和(自身を含む): 171612000

約数和(自身を除く): 90218432

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 76, 118, 152, 236, 304, 472, 608, 944, 1121, 1888, 2242, 2269, 4484, 4538, 8968, 9076, 17936, 18152, 35872, 36304, 43111, 72608, 86222, 133871, 172444, 267742, 344888, 535484, 689776, 1070968, 1379552, 2141936, 2543549, 4283872, 5087098, 10174196, 20348392, 40696784, 81393568]

約数ペア:

[(1, 81393568), (2, 40696784), (4, 20348392), (8, 10174196), (16, 5087098), (19, 4283872), (32, 2543549), (38, 2141936), (59, 1379552), (76, 1070968), (118, 689776), (152, 535484), (236, 344888), (304, 267742), (472, 172444), (608, 133871), (944, 86222), (1121, 72608), (1888, 43111), (2242, 36304), (2269, 35872), (4484, 18152), (4538, 17936), (8968, 9076)]