131642240

素因数分解:

$2^7\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1997}}^1$

素因数の和:2119

約数の個数: 64

約数和(自身を含む): 317921760

約数和(自身を除く): 186279520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 320, 412, 515, 640, 824, 1030, 1648, 1997, 2060, 3296, 3994, 4120, 6592, 7988, 8240, 9985, 13184, 15976, 16480, 19970, 31952, 32960, 39940, 63904, 65920, 79880, 127808, 159760, 205691, 255616, 319520, 411382, 639040, 822764, 1028455, 1278080, 1645528, 2056910, 3291056, 4113820, 6582112, 8227640, 13164224, 16455280, 26328448, 32910560, 65821120, 131642240]

約数ペア:

[(1, 131642240), (2, 65821120), (4, 32910560), (5, 26328448), (8, 16455280), (10, 13164224), (16, 8227640), (20, 6582112), (32, 4113820), (40, 3291056), (64, 2056910), (80, 1645528), (103, 1278080), (128, 1028455), (160, 822764), (206, 639040), (320, 411382), (412, 319520), (515, 255616), (640, 205691), (824, 159760), (1030, 127808), (1648, 79880), (1997, 65920), (2060, 63904), (3296, 39940), (3994, 32960), (4120, 31952), (6592, 19970), (7988, 16480), (8240, 15976), (9985, 13184)]