81977248

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1847}}^1$

素因数の和:1949

約数の個数: 48

約数和(自身を含む): 172307520

約数和(自身を除く): 90330272

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 73, 76, 146, 152, 292, 304, 584, 608, 1168, 1387, 1847, 2336, 2774, 3694, 5548, 7388, 11096, 14776, 22192, 29552, 35093, 44384, 59104, 70186, 134831, 140372, 269662, 280744, 539324, 561488, 1078648, 1122976, 2157296, 2561789, 4314592, 5123578, 10247156, 20494312, 40988624, 81977248]

約数ペア:

[(1, 81977248), (2, 40988624), (4, 20494312), (8, 10247156), (16, 5123578), (19, 4314592), (32, 2561789), (38, 2157296), (73, 1122976), (76, 1078648), (146, 561488), (152, 539324), (292, 280744), (304, 269662), (584, 140372), (608, 134831), (1168, 70186), (1387, 59104), (1847, 44384), (2336, 35093), (2774, 29552), (3694, 22192), (5548, 14776), (7388, 11096)]