219910040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{112199}}^1$

素因数の和:112224

約数の個数: 48

約数和(自身を含む): 575586000

約数和(自身を除く): 355675960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 112199, 224398, 448796, 560995, 785393, 897592, 1121990, 1570786, 2243980, 3141572, 3926965, 4487960, 5497751, 6283144, 7853930, 10995502, 15707860, 21991004, 27488755, 31415720, 43982008, 54977510, 109955020, 219910040]

約数ペア:

[(1, 219910040), (2, 109955020), (4, 54977510), (5, 43982008), (7, 31415720), (8, 27488755), (10, 21991004), (14, 15707860), (20, 10995502), (28, 7853930), (35, 6283144), (40, 5497751), (49, 4487960), (56, 3926965), (70, 3141572), (98, 2243980), (140, 1570786), (196, 1121990), (245, 897592), (280, 785393), (392, 560995), (490, 448796), (980, 224398), (1960, 112199)]