20647130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1453}}^1$

素因数の和:1503

約数の個数: 48

約数和(自身を含む): 44754120

約数和(自身を除く): 24106990

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 203, 245, 290, 406, 490, 1015, 1421, 1453, 2030, 2842, 2906, 7105, 7265, 10171, 14210, 14530, 20342, 42137, 50855, 71197, 84274, 101710, 142394, 210685, 294959, 355985, 421370, 589918, 711970, 1474795, 2064713, 2949590, 4129426, 10323565, 20647130]

約数ペア:

[(1, 20647130), (2, 10323565), (5, 4129426), (7, 2949590), (10, 2064713), (14, 1474795), (29, 711970), (35, 589918), (49, 421370), (58, 355985), (70, 294959), (98, 210685), (145, 142394), (203, 101710), (245, 84274), (290, 71197), (406, 50855), (490, 42137), (1015, 20342), (1421, 14530), (1453, 14210), (2030, 10171), (2842, 7265), (2906, 7105)]