18047860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^3\times {\mathrm{37}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 40314960

約数和(自身を除く): 22267100

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 580, 740, 841, 1073, 1682, 2146, 3364, 4205, 4292, 5365, 8410, 10730, 16820, 21460, 24389, 31117, 48778, 62234, 97556, 121945, 124468, 155585, 243890, 311170, 487780, 622340, 902393, 1804786, 3609572, 4511965, 9023930, 18047860]

約数ペア:

[(1, 18047860), (2, 9023930), (4, 4511965), (5, 3609572), (10, 1804786), (20, 902393), (29, 622340), (37, 487780), (58, 311170), (74, 243890), (116, 155585), (145, 124468), (148, 121945), (185, 97556), (290, 62234), (370, 48778), (580, 31117), (740, 24389), (841, 21460), (1073, 16820), (1682, 10730), (2146, 8410), (3364, 5365), (4205, 4292)]