259492720

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{18121}}^1$

素因数の和:18313

約数の個数: 40

約数和(自身を含む): 606724560

約数和(自身を除く): 347231840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 7160, 14320, 18121, 36242, 72484, 90605, 144968, 181210, 289936, 362420, 724840, 1449680, 3243659, 6487318, 12974636, 16218295, 25949272, 32436590, 51898544, 64873180, 129746360, 259492720]

約数ペア:

[(1, 259492720), (2, 129746360), (4, 64873180), (5, 51898544), (8, 32436590), (10, 25949272), (16, 16218295), (20, 12974636), (40, 6487318), (80, 3243659), (179, 1449680), (358, 724840), (716, 362420), (895, 289936), (1432, 181210), (1790, 144968), (2864, 90605), (3580, 72484), (7160, 36242), (14320, 18121)]