257131112

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{2029}}^1$

素因数の和:2146

約数の個数: 64

約数和(自身を含む): 576844800

約数和(自身を除く): 319713688

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 73, 124, 146, 217, 248, 292, 434, 511, 584, 868, 1022, 1736, 2029, 2044, 2263, 4058, 4088, 4526, 8116, 9052, 14203, 15841, 16232, 18104, 28406, 31682, 56812, 62899, 63364, 113624, 125798, 126728, 148117, 251596, 296234, 440293, 503192, 592468, 880586, 1036819, 1184936, 1761172, 2073638, 3522344, 4147276, 4591627, 8294552, 9183254, 18366508, 32141389, 36733016, 64282778, 128565556, 257131112]

約数ペア:

[(1, 257131112), (2, 128565556), (4, 64282778), (7, 36733016), (8, 32141389), (14, 18366508), (28, 9183254), (31, 8294552), (56, 4591627), (62, 4147276), (73, 3522344), (124, 2073638), (146, 1761172), (217, 1184936), (248, 1036819), (292, 880586), (434, 592468), (511, 503192), (584, 440293), (868, 296234), (1022, 251596), (1736, 148117), (2029, 126728), (2044, 125798), (2263, 113624), (4058, 63364), (4088, 62899), (4526, 56812), (8116, 31682), (9052, 28406), (14203, 18104), (15841, 16232)]