65821120

素因数分解:

$2^6\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1997}}^1$

素因数の和:2117

約数の個数: 56

約数和(自身を含む): 158337504

約数和(自身を除く): 92516384

約数列:

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

約数ペア:

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