20188620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1901}}^1$

素因数の和:1975

約数の個数: 72

約数和(自身を含む): 62309520

約数和(自身を除く): 42120900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 1901, 2124, 2655, 3540, 3802, 5310, 5703, 7604, 9505, 10620, 11406, 17109, 19010, 22812, 28515, 34218, 38020, 57030, 68436, 85545, 112159, 114060, 171090, 224318, 336477, 342180, 448636, 560795, 672954, 1009431, 1121590, 1345908, 1682385, 2018862, 2243180, 3364770, 4037724, 5047155, 6729540, 10094310, 20188620]

約数ペア:

[(1, 20188620), (2, 10094310), (3, 6729540), (4, 5047155), (5, 4037724), (6, 3364770), (9, 2243180), (10, 2018862), (12, 1682385), (15, 1345908), (18, 1121590), (20, 1009431), (30, 672954), (36, 560795), (45, 448636), (59, 342180), (60, 336477), (90, 224318), (118, 171090), (177, 114060), (180, 112159), (236, 85545), (295, 68436), (354, 57030), (531, 38020), (590, 34218), (708, 28515), (885, 22812), (1062, 19010), (1180, 17109), (1770, 11406), (1901, 10620), (2124, 9505), (2655, 7604), (3540, 5703), (3802, 5310)]