278978854

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1889}}^1$

素因数の和:2053

約数の個数: 48

約数和(自身を含む): 535202640

約数和(自身を除く): 256223786

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 137, 154, 274, 539, 959, 1078, 1507, 1889, 1918, 3014, 3778, 6713, 10549, 13223, 13426, 20779, 21098, 26446, 41558, 73843, 92561, 145453, 147686, 185122, 258793, 290906, 517586, 1018171, 1811551, 2036342, 2846723, 3623102, 5693446, 12680857, 19927061, 25361714, 39854122, 139489427, 278978854]

約数ペア:

[(1, 278978854), (2, 139489427), (7, 39854122), (11, 25361714), (14, 19927061), (22, 12680857), (49, 5693446), (77, 3623102), (98, 2846723), (137, 2036342), (154, 1811551), (274, 1018171), (539, 517586), (959, 290906), (1078, 258793), (1507, 185122), (1889, 147686), (1918, 145453), (3014, 92561), (3778, 73843), (6713, 41558), (10549, 26446), (13223, 21098), (13426, 20779)]