81566865

素因数分解:

$3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3067}}^1$

素因数の和:3278

約数の個数: 32

約数和(自身を含む): 145791360

約数和(自身を除く): 64224495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 197, 591, 985, 1773, 2955, 3067, 5319, 8865, 9201, 15335, 26595, 27603, 46005, 82809, 138015, 414045, 604199, 1812597, 3020995, 5437791, 9062985, 16313373, 27188955, 81566865]

約数ペア:

[(1, 81566865), (3, 27188955), (5, 16313373), (9, 9062985), (15, 5437791), (27, 3020995), (45, 1812597), (135, 604199), (197, 414045), (591, 138015), (985, 82809), (1773, 46005), (2955, 27603), (3067, 26595), (5319, 15335), (8865, 9201)]