1779076820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1\times {\mathrm{4523}}^1$

素因数の和:4880

約数の個数: 48

約数和(自身を含む): 3803200128

約数和(自身を除く): 2024123308

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 277, 284, 355, 554, 710, 1108, 1385, 1420, 2770, 4523, 5540, 9046, 18092, 19667, 22615, 39334, 45230, 78668, 90460, 98335, 196670, 321133, 393340, 642266, 1252871, 1284532, 1605665, 2505742, 3211330, 5011484, 6264355, 6422660, 12528710, 25057420, 88953841, 177907682, 355815364, 444769205, 889538410, 1779076820]

約数ペア:

[(1, 1779076820), (2, 889538410), (4, 444769205), (5, 355815364), (10, 177907682), (20, 88953841), (71, 25057420), (142, 12528710), (277, 6422660), (284, 6264355), (355, 5011484), (554, 3211330), (710, 2505742), (1108, 1605665), (1385, 1284532), (1420, 1252871), (2770, 642266), (4523, 393340), (5540, 321133), (9046, 196670), (18092, 98335), (19667, 90460), (22615, 78668), (39334, 45230)]