83138780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{349}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 179810400

約数和(自身を除く): 96671620

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 277, 349, 430, 554, 698, 860, 1108, 1385, 1396, 1745, 2770, 3490, 5540, 6980, 11911, 15007, 23822, 30014, 47644, 59555, 60028, 75035, 96673, 119110, 150070, 193346, 238220, 300140, 386692, 483365, 966730, 1933460, 4156939, 8313878, 16627756, 20784695, 41569390, 83138780]

約数ペア:

[(1, 83138780), (2, 41569390), (4, 20784695), (5, 16627756), (10, 8313878), (20, 4156939), (43, 1933460), (86, 966730), (172, 483365), (215, 386692), (277, 300140), (349, 238220), (430, 193346), (554, 150070), (698, 119110), (860, 96673), (1108, 75035), (1385, 60028), (1396, 59555), (1745, 47644), (2770, 30014), (3490, 23822), (5540, 15007), (6980, 11911)]