399062008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{19387}}^1$

素因数の和:19507

約数の個数: 32

約数和(自身を含む): 781724160

約数和(自身を除く): 382662152

約数列:

[1, 2, 4, 8, 31, 62, 83, 124, 166, 248, 332, 664, 2573, 5146, 10292, 19387, 20584, 38774, 77548, 155096, 600997, 1201994, 1609121, 2403988, 3218242, 4807976, 6436484, 12872968, 49882751, 99765502, 199531004, 399062008]

約数ペア:

[(1, 399062008), (2, 199531004), (4, 99765502), (8, 49882751), (31, 12872968), (62, 6436484), (83, 4807976), (124, 3218242), (166, 2403988), (248, 1609121), (332, 1201994), (664, 600997), (2573, 155096), (5146, 77548), (10292, 38774), (19387, 20584)]