71121160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{161639}}^1$

素因数の和:161661

約数の個数: 32

約数和(自身を含む): 174571200

約数和(自身を除く): 103450040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 161639, 323278, 646556, 808195, 1293112, 1616390, 1778029, 3232780, 3556058, 6465560, 7112116, 8890145, 14224232, 17780290, 35560580, 71121160]

約数ペア:

[(1, 71121160), (2, 35560580), (4, 17780290), (5, 14224232), (8, 8890145), (10, 7112116), (11, 6465560), (20, 3556058), (22, 3232780), (40, 1778029), (44, 1616390), (55, 1293112), (88, 808195), (110, 646556), (220, 323278), (440, 161639)]