211528720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{203393}}^1$

素因数の和:203419

約数の個数: 40

約数和(自身を含む): 529637976

約数和(自身を除く): 318109256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 203393, 406786, 813572, 1016965, 1627144, 2033930, 2644109, 3254288, 4067860, 5288218, 8135720, 10576436, 13220545, 16271440, 21152872, 26441090, 42305744, 52882180, 105764360, 211528720]

約数ペア:

[(1, 211528720), (2, 105764360), (4, 52882180), (5, 42305744), (8, 26441090), (10, 21152872), (13, 16271440), (16, 13220545), (20, 10576436), (26, 8135720), (40, 5288218), (52, 4067860), (65, 3254288), (80, 2644109), (104, 2033930), (130, 1627144), (208, 1016965), (260, 813572), (520, 406786), (1040, 203393)]