84571940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{991}}^1$

素因数の和:1268

約数の個数: 48

約数和(自身を含む): 188987904

約数和(自身を除く): 104415964

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 251, 340, 502, 991, 1004, 1255, 1982, 2510, 3964, 4267, 4955, 5020, 8534, 9910, 16847, 17068, 19820, 21335, 33694, 42670, 67388, 84235, 85340, 168470, 248741, 336940, 497482, 994964, 1243705, 2487410, 4228597, 4974820, 8457194, 16914388, 21142985, 42285970, 84571940]

約数ペア:

[(1, 84571940), (2, 42285970), (4, 21142985), (5, 16914388), (10, 8457194), (17, 4974820), (20, 4228597), (34, 2487410), (68, 1243705), (85, 994964), (170, 497482), (251, 336940), (340, 248741), (502, 168470), (991, 85340), (1004, 84235), (1255, 67388), (1982, 42670), (2510, 33694), (3964, 21335), (4267, 19820), (4955, 17068), (5020, 16847), (8534, 9910)]