57561985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 78462720

約数和(自身を除く): 20900735

約数列:

[1, 5, 13, 23, 65, 115, 139, 277, 299, 695, 1385, 1495, 1807, 3197, 3601, 6371, 9035, 15985, 18005, 31855, 38503, 41561, 82823, 192515, 207805, 414115, 500539, 885569, 2502695, 4427845, 11512397, 57561985]

約数ペア:

[(1, 57561985), (5, 11512397), (13, 4427845), (23, 2502695), (65, 885569), (115, 500539), (139, 414115), (277, 207805), (299, 192515), (695, 82823), (1385, 41561), (1495, 38503), (1807, 31855), (3197, 18005), (3601, 15985), (6371, 9035)]