15859220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{337}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 36171408

約数和(自身を除く): 20312188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 337, 362, 674, 724, 905, 1348, 1685, 1810, 2353, 3370, 3620, 4381, 4706, 6740, 8762, 9412, 11765, 17524, 21905, 23530, 43810, 47060, 60997, 87620, 121994, 243988, 304985, 609970, 792961, 1219940, 1585922, 3171844, 3964805, 7929610, 15859220]

約数ペア:

[(1, 15859220), (2, 7929610), (4, 3964805), (5, 3171844), (10, 1585922), (13, 1219940), (20, 792961), (26, 609970), (52, 304985), (65, 243988), (130, 121994), (181, 87620), (260, 60997), (337, 47060), (362, 43810), (674, 23530), (724, 21905), (905, 17524), (1348, 11765), (1685, 9412), (1810, 8762), (2353, 6740), (3370, 4706), (3620, 4381)]