84239560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^2$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 192663900

約数和(自身を除く): 108424340

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 139, 218, 278, 436, 545, 556, 695, 872, 1090, 1112, 1390, 2180, 2780, 4360, 5560, 15151, 19321, 30302, 38642, 60604, 75755, 77284, 96605, 121208, 151510, 154568, 193210, 303020, 386420, 606040, 772840, 2105989, 4211978, 8423956, 10529945, 16847912, 21059890, 42119780, 84239560]

約数ペア:

[(1, 84239560), (2, 42119780), (4, 21059890), (5, 16847912), (8, 10529945), (10, 8423956), (20, 4211978), (40, 2105989), (109, 772840), (139, 606040), (218, 386420), (278, 303020), (436, 193210), (545, 154568), (556, 151510), (695, 121208), (872, 96605), (1090, 77284), (1112, 75755), (1390, 60604), (2180, 38642), (2780, 30302), (4360, 19321), (5560, 15151)]