19633880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70121}}^1$

素因数の和:70139

約数の個数: 32

約数和(自身を含む): 50487840

約数和(自身を除く): 30853960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70121, 140242, 280484, 350605, 490847, 560968, 701210, 981694, 1402420, 1963388, 2454235, 2804840, 3926776, 4908470, 9816940, 19633880]

約数ペア:

[(1, 19633880), (2, 9816940), (4, 4908470), (5, 3926776), (7, 2804840), (8, 2454235), (10, 1963388), (14, 1402420), (20, 981694), (28, 701210), (35, 560968), (40, 490847), (56, 350605), (70, 280484), (140, 140242), (280, 70121)]