16181540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 36220800

約数和(自身を除く): 20039260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 439, 485, 878, 970, 1756, 1843, 1940, 2195, 3686, 4390, 7372, 8341, 8780, 9215, 16682, 18430, 33364, 36860, 41705, 42583, 83410, 85166, 166820, 170332, 212915, 425830, 809077, 851660, 1618154, 3236308, 4045385, 8090770, 16181540]

約数ペア:

[(1, 16181540), (2, 8090770), (4, 4045385), (5, 3236308), (10, 1618154), (19, 851660), (20, 809077), (38, 425830), (76, 212915), (95, 170332), (97, 166820), (190, 85166), (194, 83410), (380, 42583), (388, 41705), (439, 36860), (485, 33364), (878, 18430), (970, 16682), (1756, 9215), (1843, 8780), (1940, 8341), (2195, 7372), (3686, 4390)]