678605120

素因数分解:

$2^6\times 5^1\times {\mathrm{443}}^1\times {\mathrm{4787}}^1$

素因数の和:5247

約数の個数: 56

約数和(自身を含む): 1619914464

約数和(自身を除く): 941309344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 443, 886, 1772, 2215, 3544, 4430, 4787, 7088, 8860, 9574, 14176, 17720, 19148, 23935, 28352, 35440, 38296, 47870, 70880, 76592, 95740, 141760, 153184, 191480, 306368, 382960, 765920, 1531840, 2120641, 4241282, 8482564, 10603205, 16965128, 21206410, 33930256, 42412820, 67860512, 84825640, 135721024, 169651280, 339302560, 678605120]

約数ペア:

[(1, 678605120), (2, 339302560), (4, 169651280), (5, 135721024), (8, 84825640), (10, 67860512), (16, 42412820), (20, 33930256), (32, 21206410), (40, 16965128), (64, 10603205), (80, 8482564), (160, 4241282), (320, 2120641), (443, 1531840), (886, 765920), (1772, 382960), (2215, 306368), (3544, 191480), (4430, 153184), (4787, 141760), (7088, 95740), (8860, 76592), (9574, 70880), (14176, 47870), (17720, 38296), (19148, 35440), (23935, 28352)]