18738850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 37997568

約数和(自身を除く): 19258718

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 127, 130, 227, 254, 325, 454, 635, 650, 1135, 1270, 1651, 2270, 2951, 3175, 3302, 5675, 5902, 6350, 8255, 11350, 14755, 16510, 28829, 29510, 41275, 57658, 73775, 82550, 144145, 147550, 288290, 374777, 720725, 749554, 1441450, 1873885, 3747770, 9369425, 18738850]

約数ペア:

[(1, 18738850), (2, 9369425), (5, 3747770), (10, 1873885), (13, 1441450), (25, 749554), (26, 720725), (50, 374777), (65, 288290), (127, 147550), (130, 144145), (227, 82550), (254, 73775), (325, 57658), (454, 41275), (635, 29510), (650, 28829), (1135, 16510), (1270, 14755), (1651, 11350), (2270, 8255), (2951, 6350), (3175, 5902), (3302, 5675)]