20540688

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{541}}^1$

素因数の和:672

約数の個数: 80

約数和(自身を含む): 61293696

約数和(自身を除く): 40753008

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 113, 168, 226, 336, 339, 452, 541, 678, 791, 904, 1082, 1356, 1582, 1623, 1808, 2164, 2373, 2712, 3164, 3246, 3787, 4328, 4746, 5424, 6328, 6492, 7574, 8656, 9492, 11361, 12656, 12984, 15148, 18984, 22722, 25968, 30296, 37968, 45444, 60592, 61133, 90888, 122266, 181776, 183399, 244532, 366798, 427931, 489064, 733596, 855862, 978128, 1283793, 1467192, 1711724, 2567586, 2934384, 3423448, 5135172, 6846896, 10270344, 20540688]

約数ペア:

[(1, 20540688), (2, 10270344), (3, 6846896), (4, 5135172), (6, 3423448), (7, 2934384), (8, 2567586), (12, 1711724), (14, 1467192), (16, 1283793), (21, 978128), (24, 855862), (28, 733596), (42, 489064), (48, 427931), (56, 366798), (84, 244532), (112, 183399), (113, 181776), (168, 122266), (226, 90888), (336, 61133), (339, 60592), (452, 45444), (541, 37968), (678, 30296), (791, 25968), (904, 22722), (1082, 18984), (1356, 15148), (1582, 12984), (1623, 12656), (1808, 11361), (2164, 9492), (2373, 8656), (2712, 7574), (3164, 6492), (3246, 6328), (3787, 5424), (4328, 4746)]