20189960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10301}}^1$

素因数の和:10326

約数の個数: 48

約数和(自身を含む): 52849260

約数和(自身を除く): 32659300

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10301, 20602, 41204, 51505, 72107, 82408, 103010, 144214, 206020, 288428, 360535, 412040, 504749, 576856, 721070, 1009498, 1442140, 2018996, 2523745, 2884280, 4037992, 5047490, 10094980, 20189960]

約数ペア:

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