388781648

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{17519}}^1$

素因数の和:17619

約数の個数: 40

約数和(自身を含む): 803817600

約数和(自身を除く): 415035952

約数列:

[1, 2, 4, 8, 16, 19, 38, 73, 76, 146, 152, 292, 304, 584, 1168, 1387, 2774, 5548, 11096, 17519, 22192, 35038, 70076, 140152, 280304, 332861, 665722, 1278887, 1331444, 2557774, 2662888, 5115548, 5325776, 10231096, 20462192, 24298853, 48597706, 97195412, 194390824, 388781648]

約数ペア:

[(1, 388781648), (2, 194390824), (4, 97195412), (8, 48597706), (16, 24298853), (19, 20462192), (38, 10231096), (73, 5325776), (76, 5115548), (146, 2662888), (152, 2557774), (292, 1331444), (304, 1278887), (584, 665722), (1168, 332861), (1387, 280304), (2774, 140152), (5548, 70076), (11096, 35038), (17519, 22192)]