78492855

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{269}}^1\times {\mathrm{397}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 147005280

約数和(自身を除く): 68512425

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 269, 397, 735, 807, 1191, 1345, 1883, 1985, 2779, 4035, 5649, 5955, 8337, 9415, 13181, 13895, 19453, 28245, 39543, 41685, 58359, 65905, 97265, 106793, 197715, 291795, 320379, 533965, 747551, 1601895, 2242653, 3737755, 5232857, 11213265, 15698571, 26164285, 78492855]

約数ペア:

[(1, 78492855), (3, 26164285), (5, 15698571), (7, 11213265), (15, 5232857), (21, 3737755), (35, 2242653), (49, 1601895), (105, 747551), (147, 533965), (245, 320379), (269, 291795), (397, 197715), (735, 106793), (807, 97265), (1191, 65905), (1345, 58359), (1883, 41685), (1985, 39543), (2779, 28245), (4035, 19453), (5649, 13895), (5955, 13181), (8337, 9415)]