81739460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5233}}^1$

素因数の和:5324

約数の個数: 48

約数和(自身を含む): 189931392

約数和(自身を除く): 108191932

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 5233, 7810, 10466, 15620, 20932, 26165, 52330, 57563, 104660, 115126, 230252, 287815, 371543, 575630, 743086, 1151260, 1486172, 1857715, 3715430, 4086973, 7430860, 8173946, 16347892, 20434865, 40869730, 81739460]

約数ペア:

[(1, 81739460), (2, 40869730), (4, 20434865), (5, 16347892), (10, 8173946), (11, 7430860), (20, 4086973), (22, 3715430), (44, 1857715), (55, 1486172), (71, 1151260), (110, 743086), (142, 575630), (220, 371543), (284, 287815), (355, 230252), (710, 115126), (781, 104660), (1420, 57563), (1562, 52330), (3124, 26165), (3905, 20932), (5233, 15620), (7810, 10466)]