66645872

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{617}}^1$

素因数の和:825

約数の個数: 40

約数和(自身を含む): 133186416

約数和(自身を除く): 66540544

約数列:

[1, 2, 4, 8, 16, 43, 86, 157, 172, 314, 344, 617, 628, 688, 1234, 1256, 2468, 2512, 4936, 6751, 9872, 13502, 26531, 27004, 53062, 54008, 96869, 106124, 108016, 193738, 212248, 387476, 424496, 774952, 1549904, 4165367, 8330734, 16661468, 33322936, 66645872]

約数ペア:

[(1, 66645872), (2, 33322936), (4, 16661468), (8, 8330734), (16, 4165367), (43, 1549904), (86, 774952), (157, 424496), (172, 387476), (314, 212248), (344, 193738), (617, 108016), (628, 106124), (688, 96869), (1234, 54008), (1256, 53062), (2468, 27004), (2512, 26531), (4936, 13502), (6751, 9872)]