678440930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{28711}}^1$

素因数の和:28874

約数の個数: 32

約数和(自身を含む): 1302376320

約数和(自身を除く): 623935390

約数列:

[1, 2, 5, 10, 17, 34, 85, 139, 170, 278, 695, 1390, 2363, 4726, 11815, 23630, 28711, 57422, 143555, 287110, 488087, 976174, 2440435, 3990829, 4880870, 7981658, 19954145, 39908290, 67844093, 135688186, 339220465, 678440930]

約数ペア:

[(1, 678440930), (2, 339220465), (5, 135688186), (10, 67844093), (17, 39908290), (34, 19954145), (85, 7981658), (139, 4880870), (170, 3990829), (278, 2440435), (695, 976174), (1390, 488087), (2363, 287110), (4726, 143555), (11815, 57422), (23630, 28711)]