20544992

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:196

約数の個数: 72

約数和(自身を含む): 45654840

約数和(自身を除く): 25109848

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 104, 116, 131, 169, 208, 232, 262, 338, 377, 416, 464, 524, 676, 754, 928, 1048, 1352, 1508, 1703, 2096, 2704, 3016, 3406, 3799, 4192, 4901, 5408, 6032, 6812, 7598, 9802, 12064, 13624, 15196, 19604, 22139, 27248, 30392, 39208, 44278, 49387, 54496, 60784, 78416, 88556, 98774, 121568, 156832, 177112, 197548, 354224, 395096, 642031, 708448, 790192, 1284062, 1580384, 2568124, 5136248, 10272496, 20544992]

約数ペア:

[(1, 20544992), (2, 10272496), (4, 5136248), (8, 2568124), (13, 1580384), (16, 1284062), (26, 790192), (29, 708448), (32, 642031), (52, 395096), (58, 354224), (104, 197548), (116, 177112), (131, 156832), (169, 121568), (208, 98774), (232, 88556), (262, 78416), (338, 60784), (377, 54496), (416, 49387), (464, 44278), (524, 39208), (676, 30392), (754, 27248), (928, 22139), (1048, 19604), (1352, 15196), (1508, 13624), (1703, 12064), (2096, 9802), (2704, 7598), (3016, 6812), (3406, 6032), (3799, 5408), (4192, 4901)]