20154992

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 47996928

約数和(自身を除く): 27841936

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 23, 26, 44, 46, 52, 88, 92, 104, 143, 176, 184, 208, 253, 286, 299, 368, 383, 506, 572, 598, 766, 1012, 1144, 1196, 1532, 2024, 2288, 2392, 3064, 3289, 4048, 4213, 4784, 4979, 6128, 6578, 8426, 8809, 9958, 13156, 16852, 17618, 19916, 26312, 33704, 35236, 39832, 52624, 54769, 67408, 70472, 79664, 96899, 109538, 114517, 140944, 193798, 219076, 229034, 387596, 438152, 458068, 775192, 876304, 916136, 1259687, 1550384, 1832272, 2519374, 5038748, 10077496, 20154992]

約数ペア:

[(1, 20154992), (2, 10077496), (4, 5038748), (8, 2519374), (11, 1832272), (13, 1550384), (16, 1259687), (22, 916136), (23, 876304), (26, 775192), (44, 458068), (46, 438152), (52, 387596), (88, 229034), (92, 219076), (104, 193798), (143, 140944), (176, 114517), (184, 109538), (208, 96899), (253, 79664), (286, 70472), (299, 67408), (368, 54769), (383, 52624), (506, 39832), (572, 35236), (598, 33704), (766, 26312), (1012, 19916), (1144, 17618), (1196, 16852), (1532, 13156), (2024, 9958), (2288, 8809), (2392, 8426), (3064, 6578), (3289, 6128), (4048, 4979), (4213, 4784)]