551268440

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{99149}}^1$

素因数の和:99299

約数の個数: 32

約数和(自身を含む): 1249290000

約数和(自身を除く): 698021560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 99149, 198298, 396596, 495745, 793192, 991490, 1982980, 3965960, 13781711, 27563422, 55126844, 68908555, 110253688, 137817110, 275634220, 551268440]

約数ペア:

[(1, 551268440), (2, 275634220), (4, 137817110), (5, 110253688), (8, 68908555), (10, 55126844), (20, 27563422), (40, 13781711), (139, 3965960), (278, 1982980), (556, 991490), (695, 793192), (1112, 495745), (1390, 396596), (2780, 198298), (5560, 99149)]