28831886.000000000

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67493}}^1$

素因数の和:67525

約数の個数: 40

約数和(自身を含む): 251077680

約数和(自身を除く): 148488320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 67493, 134986, 269972, 337465, 539944, 674930, 1079888, 1282367, 1349860, 2564734, 2699720, 5129468, 5399440, 6411835, 10258936, 12823670, 20517872, 25647340, 51294680, 102589360]

約数ペア:

[(1, 102589360), (2, 51294680), (4, 25647340), (5, 20517872), (8, 12823670), (10, 10258936), (16, 6411835), (19, 5399440), (20, 5129468), (38, 2699720), (40, 2564734), (76, 1349860), (80, 1282367), (95, 1079888), (152, 674930), (190, 539944), (304, 337465), (380, 269972), (760, 134986), (1520, 67493)]