16455280

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1997}}^1$

素因数の和:2113

約数の個数: 40

約数和(自身を含む): 38649312

約数和(自身を除く): 22194032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 1997, 2060, 3994, 4120, 7988, 8240, 9985, 15976, 19970, 31952, 39940, 79880, 159760, 205691, 411382, 822764, 1028455, 1645528, 2056910, 3291056, 4113820, 8227640, 16455280]

約数ペア:

[(1, 16455280), (2, 8227640), (4, 4113820), (5, 3291056), (8, 2056910), (10, 1645528), (16, 1028455), (20, 822764), (40, 411382), (80, 205691), (103, 159760), (206, 79880), (412, 39940), (515, 31952), (824, 19970), (1030, 15976), (1648, 9985), (1997, 8240), (2060, 7988), (3994, 4120)]