1987352315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{1307}}^1$

素因数の和:1631

約数の個数: 32

約数和(自身を含む): 2603966400

約数和(自身を除く): 616614085

約数列:

[1, 5, 13, 65, 149, 157, 745, 785, 1307, 1937, 2041, 6535, 9685, 10205, 16991, 23393, 84955, 116965, 194743, 205199, 304109, 973715, 1025995, 1520545, 2531659, 2667587, 12658295, 13337935, 30574651, 152873255, 397470463, 1987352315]

約数ペア:

[(1, 1987352315), (5, 397470463), (13, 152873255), (65, 30574651), (149, 13337935), (157, 12658295), (745, 2667587), (785, 2531659), (1307, 1520545), (1937, 1025995), (2041, 973715), (6535, 304109), (9685, 205199), (10205, 194743), (16991, 116965), (23393, 84955)]