20502240

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{353}}^1$

素因数の和:393

約数の個数: 144

約数和(自身を含む): 71187984

約数和(自身を除く): 50685744

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 121, 132, 160, 165, 176, 220, 240, 242, 264, 330, 352, 353, 363, 440, 480, 484, 528, 605, 660, 706, 726, 880, 968, 1056, 1059, 1210, 1320, 1412, 1452, 1760, 1765, 1815, 1936, 2118, 2420, 2640, 2824, 2904, 3530, 3630, 3872, 3883, 4236, 4840, 5280, 5295, 5648, 5808, 7060, 7260, 7766, 8472, 9680, 10590, 11296, 11616, 11649, 14120, 14520, 15532, 16944, 19360, 19415, 21180, 23298, 28240, 29040, 31064, 33888, 38830, 42360, 42713, 46596, 56480, 58080, 58245, 62128, 77660, 84720, 85426, 93192, 116490, 124256, 128139, 155320, 169440, 170852, 186384, 213565, 232980, 256278, 310640, 341704, 372768, 427130, 465960, 512556, 621280, 640695, 683408, 854260, 931920, 1025112, 1281390, 1366816, 1708520, 1863840, 2050224, 2562780, 3417040, 4100448, 5125560, 6834080, 10251120, 20502240]

約数ペア:

[(1, 20502240), (2, 10251120), (3, 6834080), (4, 5125560), (5, 4100448), (6, 3417040), (8, 2562780), (10, 2050224), (11, 1863840), (12, 1708520), (15, 1366816), (16, 1281390), (20, 1025112), (22, 931920), (24, 854260), (30, 683408), (32, 640695), (33, 621280), (40, 512556), (44, 465960), (48, 427130), (55, 372768), (60, 341704), (66, 310640), (80, 256278), (88, 232980), (96, 213565), (110, 186384), (120, 170852), (121, 169440), (132, 155320), (160, 128139), (165, 124256), (176, 116490), (220, 93192), (240, 85426), (242, 84720), (264, 77660), (330, 62128), (352, 58245), (353, 58080), (363, 56480), (440, 46596), (480, 42713), (484, 42360), (528, 38830), (605, 33888), (660, 31064), (706, 29040), (726, 28240), (880, 23298), (968, 21180), (1056, 19415), (1059, 19360), (1210, 16944), (1320, 15532), (1412, 14520), (1452, 14120), (1760, 11649), (1765, 11616), (1815, 11296), (1936, 10590), (2118, 9680), (2420, 8472), (2640, 7766), (2824, 7260), (2904, 7060), (3530, 5808), (3630, 5648), (3872, 5295), (3883, 5280), (4236, 4840)]