20315890

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5923}}^1$

素因数の和:5951

約数の個数: 32

約数和(自身を含む): 42652800

約数和(自身を除く): 22336910

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5923, 11846, 29615, 41461, 59230, 82922, 207305, 290227, 414610, 580454, 1451135, 2031589, 2902270, 4063178, 10157945, 20315890]

約数ペア:

[(1, 20315890), (2, 10157945), (5, 4063178), (7, 2902270), (10, 2031589), (14, 1451135), (35, 580454), (49, 414610), (70, 290227), (98, 207305), (245, 82922), (343, 59230), (490, 41461), (686, 29615), (1715, 11846), (3430, 5923)]