64161640

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{3067}}^1$

素因数の和:3601

約数の個数: 32

約数和(自身を含む): 144686880

約数和(自身を除く): 80525240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 3067, 4184, 5230, 6134, 10460, 12268, 15335, 20920, 24536, 30670, 61340, 122680, 1604041, 3208082, 6416164, 8020205, 12832328, 16040410, 32080820, 64161640]

約数ペア:

[(1, 64161640), (2, 32080820), (4, 16040410), (5, 12832328), (8, 8020205), (10, 6416164), (20, 3208082), (40, 1604041), (523, 122680), (1046, 61340), (2092, 30670), (2615, 24536), (3067, 20920), (4184, 15335), (5230, 12268), (6134, 10460)]