394062080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{9931}}^1$

素因数の和:9983

約数の個数: 72

約数和(自身を含む): 974448384

約数和(自身を除く): 580386304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 9931, 19840, 19862, 39680, 39724, 49655, 79448, 99310, 158896, 198620, 307861, 317792, 397240, 615722, 635584, 794480, 1231444, 1271168, 1539305, 1588960, 2462888, 2542336, 3078610, 3177920, 4925776, 6157220, 6355840, 9851552, 12314440, 12711680, 19703104, 24628880, 39406208, 49257760, 78812416, 98515520, 197031040, 394062080]

約数ペア:

[(1, 394062080), (2, 197031040), (4, 98515520), (5, 78812416), (8, 49257760), (10, 39406208), (16, 24628880), (20, 19703104), (31, 12711680), (32, 12314440), (40, 9851552), (62, 6355840), (64, 6157220), (80, 4925776), (124, 3177920), (128, 3078610), (155, 2542336), (160, 2462888), (248, 1588960), (256, 1539305), (310, 1271168), (320, 1231444), (496, 794480), (620, 635584), (640, 615722), (992, 397240), (1240, 317792), (1280, 307861), (1984, 198620), (2480, 158896), (3968, 99310), (4960, 79448), (7936, 49655), (9920, 39724), (9931, 39680), (19840, 19862)]