199918740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{475997}}^1$

素因数の和:476016

約数の個数: 48

約数和(自身を含む): 639741312

約数和(自身を除く): 439822572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 475997, 951994, 1427991, 1903988, 2379985, 2855982, 3331979, 4759970, 5711964, 6663958, 7139955, 9519940, 9995937, 13327916, 14279910, 16659895, 19991874, 28559820, 33319790, 39983748, 49979685, 66639580, 99959370, 199918740]

約数ペア:

[(1, 199918740), (2, 99959370), (3, 66639580), (4, 49979685), (5, 39983748), (6, 33319790), (7, 28559820), (10, 19991874), (12, 16659895), (14, 14279910), (15, 13327916), (20, 9995937), (21, 9519940), (28, 7139955), (30, 6663958), (35, 5711964), (42, 4759970), (60, 3331979), (70, 2855982), (84, 2379985), (105, 1903988), (140, 1427991), (210, 951994), (420, 475997)]