213251920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{54401}}^1$

素因数の和:54428

約数の個数: 60

約数和(自身を含む): 576770004

約数和(自身を除く): 363518084

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 54401, 108802, 217604, 272005, 380807, 435208, 544010, 761614, 870416, 1088020, 1523228, 1904035, 2176040, 2665649, 3046456, 3808070, 4352080, 5331298, 6092912, 7616140, 10662596, 13328245, 15232280, 21325192, 26656490, 30464560, 42650384, 53312980, 106625960, 213251920]

約数ペア:

[(1, 213251920), (2, 106625960), (4, 53312980), (5, 42650384), (7, 30464560), (8, 26656490), (10, 21325192), (14, 15232280), (16, 13328245), (20, 10662596), (28, 7616140), (35, 6092912), (40, 5331298), (49, 4352080), (56, 3808070), (70, 3046456), (80, 2665649), (98, 2176040), (112, 1904035), (140, 1523228), (196, 1088020), (245, 870416), (280, 761614), (392, 544010), (490, 435208), (560, 380807), (784, 272005), (980, 217604), (1960, 108802), (3920, 54401)]