20153848

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 45158400

約数和(自身を除く): 25004552

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 79, 88, 104, 143, 158, 223, 286, 316, 446, 572, 632, 869, 892, 1027, 1144, 1738, 1784, 2054, 2453, 2899, 3476, 4108, 4906, 5798, 6952, 8216, 9812, 11297, 11596, 17617, 19624, 22594, 23192, 31889, 35234, 45188, 63778, 70468, 90376, 127556, 140936, 193787, 229021, 255112, 387574, 458042, 775148, 916084, 1550296, 1832168, 2519231, 5038462, 10076924, 20153848]

約数ペア:

[(1, 20153848), (2, 10076924), (4, 5038462), (8, 2519231), (11, 1832168), (13, 1550296), (22, 916084), (26, 775148), (44, 458042), (52, 387574), (79, 255112), (88, 229021), (104, 193787), (143, 140936), (158, 127556), (223, 90376), (286, 70468), (316, 63778), (446, 45188), (572, 35234), (632, 31889), (869, 23192), (892, 22594), (1027, 19624), (1144, 17617), (1738, 11596), (1784, 11297), (2054, 9812), (2453, 8216), (2899, 6952), (3476, 5798), (4108, 4906)]