20184850945

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{180391}}^1$

素因数の和:180565

約数の個数: 32

約数和(自身を含む): 29093621760

約数和(自身を除く): 8908770815

約数列:

[1, 5, 7, 23, 35, 115, 139, 161, 695, 805, 973, 3197, 4865, 15985, 22379, 111895, 180391, 901955, 1262737, 4148993, 6313685, 20744965, 25074349, 29042951, 125371745, 145214755, 175520443, 576710027, 877602215, 2883550135, 4036970189, 20184850945]

約数ペア:

[(1, 20184850945), (5, 4036970189), (7, 2883550135), (23, 877602215), (35, 576710027), (115, 175520443), (139, 145214755), (161, 125371745), (695, 29042951), (805, 25074349), (973, 20744965), (3197, 6313685), (4865, 4148993), (15985, 1262737), (22379, 901955), (111895, 180391)]