156978020

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{49993}}^1$

素因数の和:50159

約数の個数: 24

約数和(自身を含む): 331760184

約数和(自身を除く): 174782164

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 49993, 99986, 199972, 249965, 499930, 999860, 7848901, 15697802, 31395604, 39244505, 78489010, 156978020]

約数ペア:

[(1, 156978020), (2, 78489010), (4, 39244505), (5, 31395604), (10, 15697802), (20, 7848901), (157, 999860), (314, 499930), (628, 249965), (785, 199972), (1570, 99986), (3140, 49993)]