20941320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^2\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 65001600

約数和(自身を除く): 44060280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 79, 94, 120, 141, 158, 188, 235, 237, 282, 316, 376, 395, 470, 474, 564, 632, 705, 790, 940, 948, 1128, 1185, 1410, 1580, 1880, 1896, 2209, 2370, 2820, 3160, 3713, 4418, 4740, 5640, 6627, 7426, 8836, 9480, 11045, 11139, 13254, 14852, 17672, 18565, 22090, 22278, 26508, 29704, 33135, 37130, 44180, 44556, 53016, 55695, 66270, 74260, 88360, 89112, 111390, 132540, 148520, 174511, 222780, 265080, 349022, 445560, 523533, 698044, 872555, 1047066, 1396088, 1745110, 2094132, 2617665, 3490220, 4188264, 5235330, 6980440, 10470660, 20941320]

約数ペア:

[(1, 20941320), (2, 10470660), (3, 6980440), (4, 5235330), (5, 4188264), (6, 3490220), (8, 2617665), (10, 2094132), (12, 1745110), (15, 1396088), (20, 1047066), (24, 872555), (30, 698044), (40, 523533), (47, 445560), (60, 349022), (79, 265080), (94, 222780), (120, 174511), (141, 148520), (158, 132540), (188, 111390), (235, 89112), (237, 88360), (282, 74260), (316, 66270), (376, 55695), (395, 53016), (470, 44556), (474, 44180), (564, 37130), (632, 33135), (705, 29704), (790, 26508), (940, 22278), (948, 22090), (1128, 18565), (1185, 17672), (1410, 14852), (1580, 13254), (1880, 11139), (1896, 11045), (2209, 9480), (2370, 8836), (2820, 7426), (3160, 6627), (3713, 5640), (4418, 4740)]