66601780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67961}}^1$

素因数の和:67984

約数の個数: 36

約数和(自身を含む): 162701028

約数和(自身を除く): 96099248

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 67961, 135922, 271844, 339805, 475727, 679610, 951454, 1359220, 1902908, 2378635, 3330089, 4757270, 6660178, 9514540, 13320356, 16650445, 33300890, 66601780]

約数ペア:

[(1, 66601780), (2, 33300890), (4, 16650445), (5, 13320356), (7, 9514540), (10, 6660178), (14, 4757270), (20, 3330089), (28, 2378635), (35, 1902908), (49, 1359220), (70, 951454), (98, 679610), (140, 475727), (196, 339805), (245, 271844), (490, 135922), (980, 67961)]