18580784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61121}}^1$

素因数の和:61148

約数の個数: 20

約数和(自身を含む): 37895640

約数和(自身を除く): 19314856

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61121, 122242, 244484, 488968, 977936, 1161299, 2322598, 4645196, 9290392, 18580784]

約数ペア:

[(1, 18580784), (2, 9290392), (4, 4645196), (8, 2322598), (16, 1161299), (19, 977936), (38, 488968), (76, 244484), (152, 122242), (304, 61121)]