20439648

素因数分解:

$2^5\times 3^3\times {\mathrm{41}}^1\times {\mathrm{577}}^1$

素因数の和:637

約数の個数: 96

約数和(自身を含む): 61175520

約数和(自身を除く): 40735872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 41, 48, 54, 72, 82, 96, 108, 123, 144, 164, 216, 246, 288, 328, 369, 432, 492, 577, 656, 738, 864, 984, 1107, 1154, 1312, 1476, 1731, 1968, 2214, 2308, 2952, 3462, 3936, 4428, 4616, 5193, 5904, 6924, 8856, 9232, 10386, 11808, 13848, 15579, 17712, 18464, 20772, 23657, 27696, 31158, 35424, 41544, 47314, 55392, 62316, 70971, 83088, 94628, 124632, 141942, 166176, 189256, 212913, 249264, 283884, 378512, 425826, 498528, 567768, 638739, 757024, 851652, 1135536, 1277478, 1703304, 2271072, 2554956, 3406608, 5109912, 6813216, 10219824, 20439648]

約数ペア:

[(1, 20439648), (2, 10219824), (3, 6813216), (4, 5109912), (6, 3406608), (8, 2554956), (9, 2271072), (12, 1703304), (16, 1277478), (18, 1135536), (24, 851652), (27, 757024), (32, 638739), (36, 567768), (41, 498528), (48, 425826), (54, 378512), (72, 283884), (82, 249264), (96, 212913), (108, 189256), (123, 166176), (144, 141942), (164, 124632), (216, 94628), (246, 83088), (288, 70971), (328, 62316), (369, 55392), (432, 47314), (492, 41544), (577, 35424), (656, 31158), (738, 27696), (864, 23657), (984, 20772), (1107, 18464), (1154, 17712), (1312, 15579), (1476, 13848), (1731, 11808), (1968, 10386), (2214, 9232), (2308, 8856), (2952, 6924), (3462, 5904), (3936, 5193), (4428, 4616)]