19770860

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1597}}^1$

素因数の和:2225

約数の個数: 24

約数和(自身を含む): 41611920

約数和(自身を除く): 21841060

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 1597, 2476, 3095, 3194, 6190, 6388, 7985, 12380, 15970, 31940, 988543, 1977086, 3954172, 4942715, 9885430, 19770860]

約数ペア:

[(1, 19770860), (2, 9885430), (4, 4942715), (5, 3954172), (10, 1977086), (20, 988543), (619, 31940), (1238, 15970), (1597, 12380), (2476, 7985), (3095, 6388), (3194, 6190)]