1990196195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{11863}}^1$

素因数の和:11999

約数の個数: 32

約数和(自身を含む): 2690755200

約数和(自身を除く): 700559005

約数列:

[1, 5, 13, 29, 65, 89, 145, 377, 445, 1157, 1885, 2581, 5785, 11863, 12905, 33553, 59315, 154219, 167765, 344027, 771095, 1055807, 1720135, 4472351, 5279035, 13725491, 22361755, 30618403, 68627455, 153092015, 398039239, 1990196195]

約数ペア:

[(1, 1990196195), (5, 398039239), (13, 153092015), (29, 68627455), (65, 30618403), (89, 22361755), (145, 13725491), (377, 5279035), (445, 4472351), (1157, 1720135), (1885, 1055807), (2581, 771095), (5785, 344027), (11863, 167765), (12905, 154219), (33553, 59315)]