31718440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{337}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 77510160

約数和(自身を除く): 45791720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 181, 260, 337, 362, 520, 674, 724, 905, 1348, 1448, 1685, 1810, 2353, 2696, 3370, 3620, 4381, 4706, 6740, 7240, 8762, 9412, 11765, 13480, 17524, 18824, 21905, 23530, 35048, 43810, 47060, 60997, 87620, 94120, 121994, 175240, 243988, 304985, 487976, 609970, 792961, 1219940, 1585922, 2439880, 3171844, 3964805, 6343688, 7929610, 15859220, 31718440]

約数ペア:

[(1, 31718440), (2, 15859220), (4, 7929610), (5, 6343688), (8, 3964805), (10, 3171844), (13, 2439880), (20, 1585922), (26, 1219940), (40, 792961), (52, 609970), (65, 487976), (104, 304985), (130, 243988), (181, 175240), (260, 121994), (337, 94120), (362, 87620), (520, 60997), (674, 47060), (724, 43810), (905, 35048), (1348, 23530), (1448, 21905), (1685, 18824), (1810, 17524), (2353, 13480), (2696, 11765), (3370, 9412), (3620, 8762), (4381, 7240), (4706, 6740)]