19721830

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 16856474

約数列:

[1, 2, 5, 10, 53, 106, 127, 254, 265, 293, 530, 586, 635, 1270, 1465, 2930, 6731, 13462, 15529, 31058, 33655, 37211, 67310, 74422, 77645, 155290, 186055, 372110, 1972183, 3944366, 9860915, 19721830]

約数ペア:

[(1, 19721830), (2, 9860915), (5, 3944366), (10, 1972183), (53, 372110), (106, 186055), (127, 155290), (254, 77645), (265, 74422), (293, 67310), (530, 37211), (586, 33655), (635, 31058), (1270, 15529), (1465, 13462), (2930, 6731)]