66439820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1061}}^1$

素因数の和:1202

約数の個数: 48

約数和(自身を含む): 145587456

約数和(自身を除く): 79147636

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 101, 124, 155, 202, 310, 404, 505, 620, 1010, 1061, 2020, 2122, 3131, 4244, 5305, 6262, 10610, 12524, 15655, 21220, 31310, 32891, 62620, 65782, 107161, 131564, 164455, 214322, 328910, 428644, 535805, 657820, 1071610, 2143220, 3321991, 6643982, 13287964, 16609955, 33219910, 66439820]

約数ペア:

[(1, 66439820), (2, 33219910), (4, 16609955), (5, 13287964), (10, 6643982), (20, 3321991), (31, 2143220), (62, 1071610), (101, 657820), (124, 535805), (155, 428644), (202, 328910), (310, 214322), (404, 164455), (505, 131564), (620, 107161), (1010, 65782), (1061, 62620), (2020, 32891), (2122, 31310), (3131, 21220), (4244, 15655), (5305, 12524), (6262, 10610)]