64812015

素因数分解:

$3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2437}}^1$

素因数の和:2648

約数の個数: 32

約数和(自身を含む): 115853760

約数和(自身を除く): 51041745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 197, 591, 985, 1773, 2437, 2955, 5319, 7311, 8865, 12185, 21933, 26595, 36555, 65799, 109665, 328995, 480089, 1440267, 2400445, 4320801, 7201335, 12962403, 21604005, 64812015]

約数ペア:

[(1, 64812015), (3, 21604005), (5, 12962403), (9, 7201335), (15, 4320801), (27, 2400445), (45, 1440267), (135, 480089), (197, 328995), (591, 109665), (985, 65799), (1773, 36555), (2437, 26595), (2955, 21933), (5319, 12185), (7311, 8865)]