19970010

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2052

約数の個数: 64

約数和(自身を含む): 54720000

約数和(自身を除く): 34749990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 1999, 3330, 3998, 4995, 5997, 9990, 9995, 11994, 17991, 19990, 29985, 35982, 53973, 59970, 73963, 89955, 107946, 147926, 179910, 221889, 269865, 369815, 443778, 539730, 665667, 739630, 1109445, 1331334, 1997001, 2218890, 3328335, 3994002, 6656670, 9985005, 19970010]

約数ペア:

[(1, 19970010), (2, 9985005), (3, 6656670), (5, 3994002), (6, 3328335), (9, 2218890), (10, 1997001), (15, 1331334), (18, 1109445), (27, 739630), (30, 665667), (37, 539730), (45, 443778), (54, 369815), (74, 269865), (90, 221889), (111, 179910), (135, 147926), (185, 107946), (222, 89955), (270, 73963), (333, 59970), (370, 53973), (555, 35982), (666, 29985), (999, 19990), (1110, 17991), (1665, 11994), (1998, 9995), (1999, 9990), (3330, 5997), (3998, 4995)]