189888920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{15877}}^1$

素因数の和:15924

約数の個数: 64

約数和(自身を含む): 480150720

約数和(自身を除く): 290261800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2990, 5980, 11960, 15877, 31754, 63508, 79385, 127016, 158770, 206401, 317540, 365171, 412802, 635080, 730342, 825604, 1032005, 1460684, 1651208, 1825855, 2064010, 2921368, 3651710, 4128020, 4747223, 7303420, 8256040, 9494446, 14606840, 18988892, 23736115, 37977784, 47472230, 94944460, 189888920]

約数ペア:

[(1, 189888920), (2, 94944460), (4, 47472230), (5, 37977784), (8, 23736115), (10, 18988892), (13, 14606840), (20, 9494446), (23, 8256040), (26, 7303420), (40, 4747223), (46, 4128020), (52, 3651710), (65, 2921368), (92, 2064010), (104, 1825855), (115, 1651208), (130, 1460684), (184, 1032005), (230, 825604), (260, 730342), (299, 635080), (460, 412802), (520, 365171), (598, 317540), (920, 206401), (1196, 158770), (1495, 127016), (2392, 79385), (2990, 63508), (5980, 31754), (11960, 15877)]