21640680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1279}}^1$

素因数の和:1343

約数の個数: 96

約数和(自身を含む): 71884800

約数和(自身を除く): 50244120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 47, 60, 72, 90, 94, 120, 141, 180, 188, 235, 282, 360, 376, 423, 470, 564, 705, 846, 940, 1128, 1279, 1410, 1692, 1880, 2115, 2558, 2820, 3384, 3837, 4230, 5116, 5640, 6395, 7674, 8460, 10232, 11511, 12790, 15348, 16920, 19185, 23022, 25580, 30696, 38370, 46044, 51160, 57555, 60113, 76740, 92088, 115110, 120226, 153480, 180339, 230220, 240452, 300565, 360678, 460440, 480904, 541017, 601130, 721356, 901695, 1082034, 1202260, 1442712, 1803390, 2164068, 2404520, 2705085, 3606780, 4328136, 5410170, 7213560, 10820340, 21640680]

約数ペア:

[(1, 21640680), (2, 10820340), (3, 7213560), (4, 5410170), (5, 4328136), (6, 3606780), (8, 2705085), (9, 2404520), (10, 2164068), (12, 1803390), (15, 1442712), (18, 1202260), (20, 1082034), (24, 901695), (30, 721356), (36, 601130), (40, 541017), (45, 480904), (47, 460440), (60, 360678), (72, 300565), (90, 240452), (94, 230220), (120, 180339), (141, 153480), (180, 120226), (188, 115110), (235, 92088), (282, 76740), (360, 60113), (376, 57555), (423, 51160), (470, 46044), (564, 38370), (705, 30696), (846, 25580), (940, 23022), (1128, 19185), (1279, 16920), (1410, 15348), (1692, 12790), (1880, 11511), (2115, 10232), (2558, 8460), (2820, 7674), (3384, 6395), (3837, 5640), (4230, 5116)]