81463428

素因数分解:

$2^2\times 3^3\times {\mathrm{571}}^1\times {\mathrm{1321}}^1$

素因数の和:1905

約数の個数: 48

約数和(自身を含む): 211731520

約数和(自身を除く): 130268092

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 571, 1142, 1321, 1713, 2284, 2642, 3426, 3963, 5139, 5284, 6852, 7926, 10278, 11889, 15417, 15852, 20556, 23778, 30834, 35667, 47556, 61668, 71334, 142668, 754291, 1508582, 2262873, 3017164, 4525746, 6788619, 9051492, 13577238, 20365857, 27154476, 40731714, 81463428]

約数ペア:

[(1, 81463428), (2, 40731714), (3, 27154476), (4, 20365857), (6, 13577238), (9, 9051492), (12, 6788619), (18, 4525746), (27, 3017164), (36, 2262873), (54, 1508582), (108, 754291), (571, 142668), (1142, 71334), (1321, 61668), (1713, 47556), (2284, 35667), (2642, 30834), (3426, 23778), (3963, 20556), (5139, 15852), (5284, 15417), (6852, 11889), (7926, 10278)]