68260820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{907}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 148272768

約数和(自身を除く): 80011948

約数列:

[1, 2, 4, 5, 10, 20, 53, 71, 106, 142, 212, 265, 284, 355, 530, 710, 907, 1060, 1420, 1814, 3628, 3763, 4535, 7526, 9070, 15052, 18140, 18815, 37630, 48071, 64397, 75260, 96142, 128794, 192284, 240355, 257588, 321985, 480710, 643970, 961420, 1287940, 3413041, 6826082, 13652164, 17065205, 34130410, 68260820]

約数ペア:

[(1, 68260820), (2, 34130410), (4, 17065205), (5, 13652164), (10, 6826082), (20, 3413041), (53, 1287940), (71, 961420), (106, 643970), (142, 480710), (212, 321985), (265, 257588), (284, 240355), (355, 192284), (530, 128794), (710, 96142), (907, 75260), (1060, 64397), (1420, 48071), (1814, 37630), (3628, 18815), (3763, 18140), (4535, 15052), (7526, 9070)]