19609655

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 26732160

約数和(自身を除く): 7122505

約数列:

[1, 5, 13, 29, 65, 101, 103, 145, 377, 505, 515, 1313, 1339, 1885, 2929, 2987, 6565, 6695, 10403, 14645, 14935, 38077, 38831, 52015, 135239, 190385, 194155, 301687, 676195, 1508435, 3921931, 19609655]

約数ペア:

[(1, 19609655), (5, 3921931), (13, 1508435), (29, 676195), (65, 301687), (101, 194155), (103, 190385), (145, 135239), (377, 52015), (505, 38831), (515, 38077), (1313, 14935), (1339, 14645), (1885, 10403), (2929, 6695), (2987, 6565)]