17481940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{647}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 42239232

約数和(自身を除く): 24757292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 647, 772, 965, 1294, 1351, 1930, 2588, 2702, 3235, 3860, 4529, 5404, 6470, 6755, 9058, 12940, 13510, 18116, 22645, 27020, 45290, 90580, 124871, 249742, 499484, 624355, 874097, 1248710, 1748194, 2497420, 3496388, 4370485, 8740970, 17481940]

約数ペア:

[(1, 17481940), (2, 8740970), (4, 4370485), (5, 3496388), (7, 2497420), (10, 1748194), (14, 1248710), (20, 874097), (28, 624355), (35, 499484), (70, 249742), (140, 124871), (193, 90580), (386, 45290), (647, 27020), (772, 22645), (965, 18116), (1294, 13510), (1351, 12940), (1930, 9058), (2588, 6755), (2702, 6470), (3235, 5404), (3860, 4529)]