18378035

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 7749325

約数列:

[1, 5, 13, 19, 23, 65, 95, 115, 247, 299, 437, 647, 1235, 1495, 2185, 3235, 5681, 8411, 12293, 14881, 28405, 42055, 61465, 74405, 159809, 193453, 282739, 799045, 967265, 1413695, 3675607, 18378035]

約数ペア:

[(1, 18378035), (5, 3675607), (13, 1413695), (19, 967265), (23, 799045), (65, 282739), (95, 193453), (115, 159809), (247, 74405), (299, 61465), (437, 42055), (647, 28405), (1235, 14881), (1495, 12293), (2185, 8411), (3235, 5681)]