66985840

素因数分解:

$2^4\times 5^1\times {\mathrm{523}}^1\times {\mathrm{1601}}^1$

素因数の和:2137

約数の個数: 40

約数和(自身を含む): 156137328

約数和(自身を除く): 89151488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 523, 1046, 1601, 2092, 2615, 3202, 4184, 5230, 6404, 8005, 8368, 10460, 12808, 16010, 20920, 25616, 32020, 41840, 64040, 128080, 837323, 1674646, 3349292, 4186615, 6698584, 8373230, 13397168, 16746460, 33492920, 66985840]

約数ペア:

[(1, 66985840), (2, 33492920), (4, 16746460), (5, 13397168), (8, 8373230), (10, 6698584), (16, 4186615), (20, 3349292), (40, 1674646), (80, 837323), (523, 128080), (1046, 64040), (1601, 41840), (2092, 32020), (2615, 25616), (3202, 20920), (4184, 16010), (5230, 12808), (6404, 10460), (8005, 8368)]