23720515

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1409}}^1$

素因数の和:1471

約数の個数: 32

約数和(自身を含む): 36005760

約数和(自身を除く): 12285245

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1295, 1409, 2405, 3367, 7045, 9863, 16835, 18317, 49315, 52133, 91585, 128219, 260665, 364931, 641095, 677729, 1824655, 3388645, 4744103, 23720515]

約数ペア:

[(1, 23720515), (5, 4744103), (7, 3388645), (13, 1824655), (35, 677729), (37, 641095), (65, 364931), (91, 260665), (185, 128219), (259, 91585), (455, 52133), (481, 49315), (1295, 18317), (1409, 16835), (2405, 9863), (3367, 7045)]