788990128

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61717}}^1$

素因数の和:61789

約数の個数: 40

約数和(自身を含む): 1653054912

約数和(自身を除く): 864064784

約数列:

[1, 2, 4, 8, 16, 17, 34, 47, 68, 94, 136, 188, 272, 376, 752, 799, 1598, 3196, 6392, 12784, 61717, 123434, 246868, 493736, 987472, 1049189, 2098378, 2900699, 4196756, 5801398, 8393512, 11602796, 16787024, 23205592, 46411184, 49311883, 98623766, 197247532, 394495064, 788990128]

約数ペア:

[(1, 788990128), (2, 394495064), (4, 197247532), (8, 98623766), (16, 49311883), (17, 46411184), (34, 23205592), (47, 16787024), (68, 11602796), (94, 8393512), (136, 5801398), (188, 4196756), (272, 2900699), (376, 2098378), (752, 1049189), (799, 987472), (1598, 493736), (3196, 246868), (6392, 123434), (12784, 61717)]