18831440

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8117}}^1$

素因数の和:8159

約数の個数: 40

約数和(自身を含む): 45298440

約数和(自身を除く): 26467000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8117, 16234, 32468, 40585, 64936, 81170, 129872, 162340, 235393, 324680, 470786, 649360, 941572, 1176965, 1883144, 2353930, 3766288, 4707860, 9415720, 18831440]

約数ペア:

[(1, 18831440), (2, 9415720), (4, 4707860), (5, 3766288), (8, 2353930), (10, 1883144), (16, 1176965), (20, 941572), (29, 649360), (40, 470786), (58, 324680), (80, 235393), (116, 162340), (145, 129872), (232, 81170), (290, 64936), (464, 40585), (580, 32468), (1160, 16234), (2320, 8117)]