19399640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37307}}^1$

素因数の和:37331

約数の個数: 32

約数和(自身を含む): 47008080

約数和(自身を除く): 27608440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 37307, 74614, 149228, 186535, 298456, 373070, 484991, 746140, 969982, 1492280, 1939964, 2424955, 3879928, 4849910, 9699820, 19399640]

約数ペア:

[(1, 19399640), (2, 9699820), (4, 4849910), (5, 3879928), (8, 2424955), (10, 1939964), (13, 1492280), (20, 969982), (26, 746140), (40, 484991), (52, 373070), (65, 298456), (104, 186535), (130, 149228), (260, 74614), (520, 37307)]