20780664

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 57911760

約数和(自身を除く): 37131096

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 31, 34, 51, 53, 62, 68, 93, 102, 106, 124, 136, 159, 186, 204, 212, 248, 318, 372, 408, 424, 527, 636, 744, 901, 961, 1054, 1272, 1581, 1643, 1802, 1922, 2108, 2703, 2883, 3162, 3286, 3604, 3844, 4216, 4929, 5406, 5766, 6324, 6572, 7208, 7688, 9858, 10812, 11532, 12648, 13144, 16337, 19716, 21624, 23064, 27931, 32674, 39432, 49011, 50933, 55862, 65348, 83793, 98022, 101866, 111724, 130696, 152799, 167586, 196044, 203732, 223448, 305598, 335172, 392088, 407464, 611196, 670344, 865861, 1222392, 1731722, 2597583, 3463444, 5195166, 6926888, 10390332, 20780664]

約数ペア:

[(1, 20780664), (2, 10390332), (3, 6926888), (4, 5195166), (6, 3463444), (8, 2597583), (12, 1731722), (17, 1222392), (24, 865861), (31, 670344), (34, 611196), (51, 407464), (53, 392088), (62, 335172), (68, 305598), (93, 223448), (102, 203732), (106, 196044), (124, 167586), (136, 152799), (159, 130696), (186, 111724), (204, 101866), (212, 98022), (248, 83793), (318, 65348), (372, 55862), (408, 50933), (424, 49011), (527, 39432), (636, 32674), (744, 27931), (901, 23064), (961, 21624), (1054, 19716), (1272, 16337), (1581, 13144), (1643, 12648), (1802, 11532), (1922, 10812), (2108, 9858), (2703, 7688), (2883, 7208), (3162, 6572), (3286, 6324), (3604, 5766), (3844, 5406), (4216, 4929)]