128565556

素因数分解:

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

素因数の和:2144

約数の個数: 48

約数和(自身を含む): 269194240

約数和(自身を除く): 140628684

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 73, 124, 146, 217, 292, 434, 511, 868, 1022, 2029, 2044, 2263, 4058, 4526, 8116, 9052, 14203, 15841, 28406, 31682, 56812, 62899, 63364, 125798, 148117, 251596, 296234, 440293, 592468, 880586, 1036819, 1761172, 2073638, 4147276, 4591627, 9183254, 18366508, 32141389, 64282778, 128565556]

約数ペア:

[(1, 128565556), (2, 64282778), (4, 32141389), (7, 18366508), (14, 9183254), (28, 4591627), (31, 4147276), (62, 2073638), (73, 1761172), (124, 1036819), (146, 880586), (217, 592468), (292, 440293), (434, 296234), (511, 251596), (868, 148117), (1022, 125798), (2029, 63364), (2044, 62899), (2263, 56812), (4058, 31682), (4526, 28406), (8116, 15841), (9052, 14203)]