30971920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{7901}}^1$

素因数の和:7928

約数の個数: 60

約数和(自身を含む): 83777004

約数和(自身を除く): 52805084

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 7901, 15802, 31604, 39505, 55307, 63208, 79010, 110614, 126416, 158020, 221228, 276535, 316040, 387149, 442456, 553070, 632080, 774298, 884912, 1106140, 1548596, 1935745, 2212280, 3097192, 3871490, 4424560, 6194384, 7742980, 15485960, 30971920]

約数ペア:

[(1, 30971920), (2, 15485960), (4, 7742980), (5, 6194384), (7, 4424560), (8, 3871490), (10, 3097192), (14, 2212280), (16, 1935745), (20, 1548596), (28, 1106140), (35, 884912), (40, 774298), (49, 632080), (56, 553070), (70, 442456), (80, 387149), (98, 316040), (112, 276535), (140, 221228), (196, 158020), (245, 126416), (280, 110614), (392, 79010), (490, 63208), (560, 55307), (784, 39505), (980, 31604), (1960, 15802), (3920, 7901)]