216387920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{55201}}^1$

素因数の和:55228

約数の個数: 60

約数和(自身を含む): 585251604

約数和(自身を除く): 368863684

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, 55201, 110402, 220804, 276005, 386407, 441608, 552010, 772814, 883216, 1104020, 1545628, 1932035, 2208040, 2704849, 3091256, 3864070, 4416080, 5409698, 6182512, 7728140, 10819396, 13524245, 15456280, 21638792, 27048490, 30912560, 43277584, 54096980, 108193960, 216387920]

約数ペア:

[(1, 216387920), (2, 108193960), (4, 54096980), (5, 43277584), (7, 30912560), (8, 27048490), (10, 21638792), (14, 15456280), (16, 13524245), (20, 10819396), (28, 7728140), (35, 6182512), (40, 5409698), (49, 4416080), (56, 3864070), (70, 3091256), (80, 2704849), (98, 2208040), (112, 1932035), (140, 1545628), (196, 1104020), (245, 883216), (280, 772814), (392, 552010), (490, 441608), (560, 386407), (784, 276005), (980, 220804), (1960, 110402), (3920, 55201)]