19440080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22091}}^1$

素因数の和:22115

約数の個数: 40

約数和(自身を含む): 49309344

約数和(自身を除く): 29869264

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22091, 44182, 88364, 110455, 176728, 220910, 243001, 353456, 441820, 486002, 883640, 972004, 1215005, 1767280, 1944008, 2430010, 3888016, 4860020, 9720040, 19440080]

約数ペア:

[(1, 19440080), (2, 9720040), (4, 4860020), (5, 3888016), (8, 2430010), (10, 1944008), (11, 1767280), (16, 1215005), (20, 972004), (22, 883640), (40, 486002), (44, 441820), (55, 353456), (80, 243001), (88, 220910), (110, 176728), (176, 110455), (220, 88364), (440, 44182), (880, 22091)]