278345915

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1423}}^1$

素因数の和:1547

約数の個数: 32

約数和(自身を含む): 369100800

約数和(自身を除く): 90754885

約数列:

[1, 5, 19, 29, 71, 95, 145, 355, 551, 1349, 1423, 2059, 2755, 6745, 7115, 10295, 27037, 39121, 41267, 101033, 135185, 195605, 206335, 505165, 784073, 1919627, 2929957, 3920365, 9598135, 14649785, 55669183, 278345915]

約数ペア:

[(1, 278345915), (5, 55669183), (19, 14649785), (29, 9598135), (71, 3920365), (95, 2929957), (145, 1919627), (355, 784073), (551, 505165), (1349, 206335), (1423, 195605), (2059, 135185), (2755, 101033), (6745, 41267), (7115, 39121), (10295, 27037)]