40379920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{10301}}^1$

素因数の和:10328

約数の個数: 60

約数和(自身を含む): 109221804

約数和(自身を除く): 68841884

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, 10301, 20602, 41204, 51505, 72107, 82408, 103010, 144214, 164816, 206020, 288428, 360535, 412040, 504749, 576856, 721070, 824080, 1009498, 1153712, 1442140, 2018996, 2523745, 2884280, 4037992, 5047490, 5768560, 8075984, 10094980, 20189960, 40379920]

約数ペア:

[(1, 40379920), (2, 20189960), (4, 10094980), (5, 8075984), (7, 5768560), (8, 5047490), (10, 4037992), (14, 2884280), (16, 2523745), (20, 2018996), (28, 1442140), (35, 1153712), (40, 1009498), (49, 824080), (56, 721070), (70, 576856), (80, 504749), (98, 412040), (112, 360535), (140, 288428), (196, 206020), (245, 164816), (280, 144214), (392, 103010), (490, 82408), (560, 72107), (784, 51505), (980, 41204), (1960, 20602), (3920, 10301)]