64947380

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{4973}}^1$

素因数の和:5635

約数の個数: 24

約数和(自身を含む): 136625832

約数和(自身を除く): 71678452

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 2612, 3265, 4973, 6530, 9946, 13060, 19892, 24865, 49730, 99460, 3247369, 6494738, 12989476, 16236845, 32473690, 64947380]

約数ペア:

[(1, 64947380), (2, 32473690), (4, 16236845), (5, 12989476), (10, 6494738), (20, 3247369), (653, 99460), (1306, 49730), (2612, 24865), (3265, 19892), (4973, 13060), (6530, 9946)]