13031380

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7321}}^1$

素因数の和:7419

約数の個数: 24

約数和(自身を含む): 27677160

約数和(自身を除く): 14645780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 7321, 14642, 29284, 36605, 73210, 146420, 651569, 1303138, 2606276, 3257845, 6515690, 13031380]

約数ペア:

[(1, 13031380), (2, 6515690), (4, 3257845), (5, 2606276), (10, 1303138), (20, 651569), (89, 146420), (178, 73210), (356, 36605), (445, 29284), (890, 14642), (1780, 7321)]