20038135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 27151488

約数和(自身を除く): 7113353

約数列:

[1, 5, 13, 41, 65, 73, 103, 205, 365, 515, 533, 949, 1339, 2665, 2993, 4223, 4745, 6695, 7519, 14965, 21115, 37595, 38909, 54899, 97747, 194545, 274495, 308279, 488735, 1541395, 4007627, 20038135]

約数ペア:

[(1, 20038135), (5, 4007627), (13, 1541395), (41, 488735), (65, 308279), (73, 274495), (103, 194545), (205, 97747), (365, 54899), (515, 38909), (533, 37595), (949, 21115), (1339, 14965), (2665, 7519), (2993, 6695), (4223, 4745)]