18871370

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2027}}^1$

素因数の和:2067

約数の個数: 48

約数和(自身を含む): 41614560

約数和(自身を除く): 22743190

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 2027, 4054, 4655, 9310, 10135, 14189, 20270, 28378, 38513, 70945, 77026, 99323, 141890, 192565, 198646, 269591, 385130, 496615, 539182, 993230, 1347955, 1887137, 2695910, 3774274, 9435685, 18871370]

約数ペア:

[(1, 18871370), (2, 9435685), (5, 3774274), (7, 2695910), (10, 1887137), (14, 1347955), (19, 993230), (35, 539182), (38, 496615), (49, 385130), (70, 269591), (95, 198646), (98, 192565), (133, 141890), (190, 99323), (245, 77026), (266, 70945), (490, 38513), (665, 28378), (931, 20270), (1330, 14189), (1862, 10135), (2027, 9310), (4054, 4655)]