25513880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{91121}}^1$

素因数の和:91139

約数の個数: 32

約数和(自身を含む): 65607840

約数和(自身を除く): 40093960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 91121, 182242, 364484, 455605, 637847, 728968, 911210, 1275694, 1822420, 2551388, 3189235, 3644840, 5102776, 6378470, 12756940, 25513880]

約数ペア:

[(1, 25513880), (2, 12756940), (4, 6378470), (5, 5102776), (7, 3644840), (8, 3189235), (10, 2551388), (14, 1822420), (20, 1275694), (28, 911210), (35, 728968), (40, 637847), (56, 455605), (70, 364484), (140, 182242), (280, 91121)]