490756864

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{617}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 1061081280

約数和(自身を除く): 570324416

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 239, 256, 416, 478, 617, 832, 956, 1234, 1664, 1912, 2468, 3107, 3328, 3824, 4936, 6214, 7648, 8021, 9872, 12428, 15296, 16042, 19744, 24856, 30592, 32084, 39488, 49712, 61184, 64168, 78976, 99424, 128336, 147463, 157952, 198848, 256672, 294926, 397696, 513344, 589852, 795392, 1026688, 1179704, 1917019, 2053376, 2359408, 3834038, 4718816, 7668076, 9437632, 15336152, 18875264, 30672304, 37750528, 61344608, 122689216, 245378432, 490756864]

約数ペア:

[(1, 490756864), (2, 245378432), (4, 122689216), (8, 61344608), (13, 37750528), (16, 30672304), (26, 18875264), (32, 15336152), (52, 9437632), (64, 7668076), (104, 4718816), (128, 3834038), (208, 2359408), (239, 2053376), (256, 1917019), (416, 1179704), (478, 1026688), (617, 795392), (832, 589852), (956, 513344), (1234, 397696), (1664, 294926), (1912, 256672), (2468, 198848), (3107, 157952), (3328, 147463), (3824, 128336), (4936, 99424), (6214, 78976), (7648, 64168), (8021, 61184), (9872, 49712), (12428, 39488), (15296, 32084), (16042, 30592), (19744, 24856)]