20867220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1171}}^1$

素因数の和:1203

約数の個数: 120

約数和(自身を含む): 71473248

約数和(自身を除く): 50606028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1171, 1188, 1485, 1620, 1782, 1980, 2342, 2970, 3513, 3564, 4455, 4684, 5855, 5940, 7026, 8910, 10539, 11710, 12881, 14052, 17565, 17820, 21078, 23420, 25762, 31617, 35130, 38643, 42156, 51524, 52695, 63234, 64405, 70260, 77286, 94851, 105390, 115929, 126468, 128810, 154572, 158085, 189702, 193215, 210780, 231858, 257620, 316170, 347787, 379404, 386430, 463716, 474255, 579645, 632340, 695574, 772860, 948510, 1043361, 1159290, 1391148, 1738935, 1897020, 2086722, 2318580, 3477870, 4173444, 5216805, 6955740, 10433610, 20867220]

約数ペア:

[(1, 20867220), (2, 10433610), (3, 6955740), (4, 5216805), (5, 4173444), (6, 3477870), (9, 2318580), (10, 2086722), (11, 1897020), (12, 1738935), (15, 1391148), (18, 1159290), (20, 1043361), (22, 948510), (27, 772860), (30, 695574), (33, 632340), (36, 579645), (44, 474255), (45, 463716), (54, 386430), (55, 379404), (60, 347787), (66, 316170), (81, 257620), (90, 231858), (99, 210780), (108, 193215), (110, 189702), (132, 158085), (135, 154572), (162, 128810), (165, 126468), (180, 115929), (198, 105390), (220, 94851), (270, 77286), (297, 70260), (324, 64405), (330, 63234), (396, 52695), (405, 51524), (495, 42156), (540, 38643), (594, 35130), (660, 31617), (810, 25762), (891, 23420), (990, 21078), (1171, 17820), (1188, 17565), (1485, 14052), (1620, 12881), (1782, 11710), (1980, 10539), (2342, 8910), (2970, 7026), (3513, 5940), (3564, 5855), (4455, 4684)]