289668880

素因数分解:

$2^4\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{2741}}^1$

素因数の和:4075

約数の個数: 40

約数和(自身を含む): 674235864

約数和(自身を除く): 384566984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1321, 2642, 2741, 5284, 5482, 6605, 10568, 10964, 13210, 13705, 21136, 21928, 26420, 27410, 43856, 52840, 54820, 105680, 109640, 219280, 3620861, 7241722, 14483444, 18104305, 28966888, 36208610, 57933776, 72417220, 144834440, 289668880]

約数ペア:

[(1, 289668880), (2, 144834440), (4, 72417220), (5, 57933776), (8, 36208610), (10, 28966888), (16, 18104305), (20, 14483444), (40, 7241722), (80, 3620861), (1321, 219280), (2642, 109640), (2741, 105680), (5284, 54820), (5482, 52840), (6605, 43856), (10568, 27410), (10964, 26420), (13210, 21928), (13705, 21136)]