64940816

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{929}}^1$

素因数の和:1211

約数の個数: 40

約数和(自身を含む): 133886520

約数和(自身を除く): 68945704

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 257, 272, 514, 929, 1028, 1858, 2056, 3716, 4112, 4369, 7432, 8738, 14864, 15793, 17476, 31586, 34952, 63172, 69904, 126344, 238753, 252688, 477506, 955012, 1910024, 3820048, 4058801, 8117602, 16235204, 32470408, 64940816]

約数ペア:

[(1, 64940816), (2, 32470408), (4, 16235204), (8, 8117602), (16, 4058801), (17, 3820048), (34, 1910024), (68, 955012), (136, 477506), (257, 252688), (272, 238753), (514, 126344), (929, 69904), (1028, 63172), (1858, 34952), (2056, 31586), (3716, 17476), (4112, 15793), (4369, 14864), (7432, 8738)]