18225275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 26292960

約数和(自身を除く): 8067685

約数列:

[1, 5, 17, 19, 25, 37, 61, 85, 95, 185, 305, 323, 425, 475, 629, 703, 925, 1037, 1159, 1525, 1615, 2257, 3145, 3515, 5185, 5795, 8075, 11285, 11951, 15725, 17575, 19703, 25925, 28975, 38369, 42883, 56425, 59755, 98515, 191845, 214415, 298775, 492575, 729011, 959225, 1072075, 3645055, 18225275]

約数ペア:

[(1, 18225275), (5, 3645055), (17, 1072075), (19, 959225), (25, 729011), (37, 492575), (61, 298775), (85, 214415), (95, 191845), (185, 98515), (305, 59755), (323, 56425), (425, 42883), (475, 38369), (629, 28975), (703, 25925), (925, 19703), (1037, 17575), (1159, 15725), (1525, 11951), (1615, 11285), (2257, 8075), (3145, 5795), (3515, 5185)]