678640910

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{271}}^1\times {\mathrm{1399}}^1$

素因数の和:1856

約数の個数: 32

約数和(自身を含む): 1233792000

約数和(自身を除く): 555151090

約数列:

[1, 2, 5, 10, 179, 271, 358, 542, 895, 1355, 1399, 1790, 2710, 2798, 6995, 13990, 48509, 97018, 242545, 250421, 379129, 485090, 500842, 758258, 1252105, 1895645, 2504210, 3791290, 67864091, 135728182, 339320455, 678640910]

約数ペア:

[(1, 678640910), (2, 339320455), (5, 135728182), (10, 67864091), (179, 3791290), (271, 2504210), (358, 1895645), (542, 1252105), (895, 758258), (1355, 500842), (1399, 485090), (1790, 379129), (2710, 250421), (2798, 242545), (6995, 97018), (13990, 48509)]