257647910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{17539}}^1$

素因数の和:17672

約数の個数: 32

約数和(自身を含む): 503889120

約数和(自身を除く): 246241210

約数列:

[1, 2, 5, 10, 13, 26, 65, 113, 130, 226, 565, 1130, 1469, 2938, 7345, 14690, 17539, 35078, 87695, 175390, 228007, 456014, 1140035, 1981907, 2280070, 3963814, 9909535, 19819070, 25764791, 51529582, 128823955, 257647910]

約数ペア:

[(1, 257647910), (2, 128823955), (5, 51529582), (10, 25764791), (13, 19819070), (26, 9909535), (65, 3963814), (113, 2280070), (130, 1981907), (226, 1140035), (565, 456014), (1130, 228007), (1469, 175390), (2938, 87695), (7345, 35078), (14690, 17539)]