17480980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 22879340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 439, 724, 878, 905, 1756, 1810, 1991, 2195, 3620, 3982, 4390, 4829, 7964, 8780, 9658, 9955, 19316, 19910, 24145, 39820, 48290, 79459, 96580, 158918, 317836, 397295, 794590, 874049, 1589180, 1748098, 3496196, 4370245, 8740490, 17480980]

約数ペア:

[(1, 17480980), (2, 8740490), (4, 4370245), (5, 3496196), (10, 1748098), (11, 1589180), (20, 874049), (22, 794590), (44, 397295), (55, 317836), (110, 158918), (181, 96580), (220, 79459), (362, 48290), (439, 39820), (724, 24145), (878, 19910), (905, 19316), (1756, 9955), (1810, 9658), (1991, 8780), (2195, 7964), (3620, 4829), (3982, 4390)]