127960640

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4493}}^1$

素因数の和:4599

約数の個数: 56

約数和(自身を含む): 308198520

約数和(自身を除く): 180237880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 160, 178, 320, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 4493, 5696, 7120, 8986, 14240, 17972, 22465, 28480, 35944, 44930, 71888, 89860, 143776, 179720, 287552, 359440, 399877, 718880, 799754, 1437760, 1599508, 1999385, 3199016, 3998770, 6398032, 7997540, 12796064, 15995080, 25592128, 31990160, 63980320, 127960640]

約数ペア:

[(1, 127960640), (2, 63980320), (4, 31990160), (5, 25592128), (8, 15995080), (10, 12796064), (16, 7997540), (20, 6398032), (32, 3998770), (40, 3199016), (64, 1999385), (80, 1599508), (89, 1437760), (160, 799754), (178, 718880), (320, 399877), (356, 359440), (445, 287552), (712, 179720), (890, 143776), (1424, 89860), (1780, 71888), (2848, 44930), (3560, 35944), (4493, 28480), (5696, 22465), (7120, 17972), (8986, 14240)]