378700420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{386429}}^1$

素因数の和:386452

約数の個数: 36

約数和(自身を含む): 925113420

約数和(自身を除く): 546413000

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 386429, 772858, 1545716, 1932145, 2705003, 3864290, 5410006, 7728580, 10820012, 13525015, 18935021, 27050030, 37870042, 54100060, 75740084, 94675105, 189350210, 378700420]

約数ペア:

[(1, 378700420), (2, 189350210), (4, 94675105), (5, 75740084), (7, 54100060), (10, 37870042), (14, 27050030), (20, 18935021), (28, 13525015), (35, 10820012), (49, 7728580), (70, 5410006), (98, 3864290), (140, 2705003), (196, 1932145), (245, 1545716), (490, 772858), (980, 386429)]