19501400

素因数分解:

$2^3\times 5^2\times {\mathrm{281}}^1\times {\mathrm{347}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 45633240

約数和(自身を除く): 26131840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 281, 347, 562, 694, 1124, 1388, 1405, 1735, 2248, 2776, 2810, 3470, 5620, 6940, 7025, 8675, 11240, 13880, 14050, 17350, 28100, 34700, 56200, 69400, 97507, 195014, 390028, 487535, 780056, 975070, 1950140, 2437675, 3900280, 4875350, 9750700, 19501400]

約数ペア:

[(1, 19501400), (2, 9750700), (4, 4875350), (5, 3900280), (8, 2437675), (10, 1950140), (20, 975070), (25, 780056), (40, 487535), (50, 390028), (100, 195014), (200, 97507), (281, 69400), (347, 56200), (562, 34700), (694, 28100), (1124, 17350), (1388, 14050), (1405, 13880), (1735, 11240), (2248, 8675), (2776, 7025), (2810, 6940), (3470, 5620)]