38739880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15877}}^1$

素因数の和:15949

約数の個数: 32

約数和(自身を含む): 88599240

約数和(自身を除く): 49859360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 15877, 31754, 63508, 79385, 127016, 158770, 317540, 635080, 968497, 1936994, 3873988, 4842485, 7747976, 9684970, 19369940, 38739880]

約数ペア:

[(1, 38739880), (2, 19369940), (4, 9684970), (5, 7747976), (8, 4842485), (10, 3873988), (20, 1936994), (40, 968497), (61, 635080), (122, 317540), (244, 158770), (305, 127016), (488, 79385), (610, 63508), (1220, 31754), (2440, 15877)]