22278025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 35140608

約数和(自身を除く): 12862583

約数列:

[1, 5, 7, 11, 25, 35, 55, 71, 77, 163, 175, 275, 355, 385, 497, 781, 815, 1141, 1775, 1793, 1925, 2485, 3905, 4075, 5467, 5705, 8965, 11573, 12425, 12551, 19525, 27335, 28525, 44825, 57865, 62755, 81011, 127303, 136675, 289325, 313775, 405055, 636515, 891121, 2025275, 3182575, 4455605, 22278025]

約数ペア:

[(1, 22278025), (5, 4455605), (7, 3182575), (11, 2025275), (25, 891121), (35, 636515), (55, 405055), (71, 313775), (77, 289325), (163, 136675), (175, 127303), (275, 81011), (355, 62755), (385, 57865), (497, 44825), (781, 28525), (815, 27335), (1141, 19525), (1775, 12551), (1793, 12425), (1925, 11573), (2485, 8965), (3905, 5705), (4075, 5467)]