204428690

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{2411}}^1$

素因数の和:2618

約数の個数: 32

約数和(自身を含む): 376850880

約数和(自身を除く): 172422190

約数列:

[1, 2, 5, 10, 61, 122, 139, 278, 305, 610, 695, 1390, 2411, 4822, 8479, 12055, 16958, 24110, 42395, 84790, 147071, 294142, 335129, 670258, 735355, 1470710, 1675645, 3351290, 20442869, 40885738, 102214345, 204428690]

約数ペア:

[(1, 204428690), (2, 102214345), (5, 40885738), (10, 20442869), (61, 3351290), (122, 1675645), (139, 1470710), (278, 735355), (305, 670258), (610, 335129), (695, 294142), (1390, 147071), (2411, 84790), (4822, 42395), (8479, 24110), (12055, 16958)]