139808

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{257}}^1$

素因数の和:284

約数の個数: 24

約数和(自身を含む): 292572

約数和(自身を除く): 152764

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 257, 272, 514, 544, 1028, 2056, 4112, 4369, 8224, 8738, 17476, 34952, 69904, 139808]

約数ペア:

[(1, 139808), (2, 69904), (4, 34952), (8, 17476), (16, 8738), (17, 8224), (32, 4369), (34, 4112), (68, 2056), (136, 1028), (257, 544), (272, 514)]