20073820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5939}}^1$

素因数の和:5974

約数の個数: 36

約数和(自身を含む): 45654840

約数和(自身を除く): 25581020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 5939, 11878, 23756, 29695, 59390, 77207, 118780, 154414, 308828, 386035, 772070, 1003691, 1544140, 2007382, 4014764, 5018455, 10036910, 20073820]

約数ペア:

[(1, 20073820), (2, 10036910), (4, 5018455), (5, 4014764), (10, 2007382), (13, 1544140), (20, 1003691), (26, 772070), (52, 386035), (65, 308828), (130, 154414), (169, 118780), (260, 77207), (338, 59390), (676, 29695), (845, 23756), (1690, 11878), (3380, 5939)]