158421260

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{7993}}^1$

素因数の和:8993

約数の個数: 24

約数和(自身を含む): 333062016

約数和(自身を除く): 174640756

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4955, 7993, 9910, 15986, 19820, 31972, 39965, 79930, 159860, 7921063, 15842126, 31684252, 39605315, 79210630, 158421260]

約数ペア:

[(1, 158421260), (2, 79210630), (4, 39605315), (5, 31684252), (10, 15842126), (20, 7921063), (991, 159860), (1982, 79930), (3964, 39965), (4955, 31972), (7993, 19820), (9910, 15986)]