81288935

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9403}}^1$

素因数の和:9447

約数の個数: 32

約数和(自身を含む): 126389760

約数和(自身を除く): 45100825

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 8645, 9403, 47015, 65821, 122239, 178657, 329105, 611195, 855673, 893285, 1250599, 2322541, 4278365, 6252995, 11612705, 16257787, 81288935]

約数ペア:

[(1, 81288935), (5, 16257787), (7, 11612705), (13, 6252995), (19, 4278365), (35, 2322541), (65, 1250599), (91, 893285), (95, 855673), (133, 611195), (247, 329105), (455, 178657), (665, 122239), (1235, 65821), (1729, 47015), (8645, 9403)]