51213295

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{563}}^1$

素因数の和:711

約数の個数: 32

約数和(自身を含む): 74068992

約数和(自身を除く): 22855697

約数列:

[1, 5, 7, 23, 35, 113, 115, 161, 563, 565, 791, 805, 2599, 2815, 3941, 3955, 12949, 12995, 18193, 19705, 63619, 64745, 90643, 90965, 318095, 445333, 453215, 1463237, 2226665, 7316185, 10242659, 51213295]

約数ペア:

[(1, 51213295), (5, 10242659), (7, 7316185), (23, 2226665), (35, 1463237), (113, 453215), (115, 445333), (161, 318095), (563, 90965), (565, 90643), (791, 64745), (805, 63619), (2599, 19705), (2815, 18193), (3941, 12995), (3955, 12949)]