31728385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1117}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 45077760

約数和(自身を除く): 13349375

約数列:

[1, 5, 13, 19, 23, 65, 95, 115, 247, 299, 437, 1117, 1235, 1495, 2185, 5585, 5681, 14521, 21223, 25691, 28405, 72605, 106115, 128455, 275899, 333983, 488129, 1379495, 1669915, 2440645, 6345677, 31728385]

約数ペア:

[(1, 31728385), (5, 6345677), (13, 2440645), (19, 1669915), (23, 1379495), (65, 488129), (95, 333983), (115, 275899), (247, 128455), (299, 106115), (437, 72605), (1117, 28405), (1235, 25691), (1495, 21223), (2185, 14521), (5585, 5681)]