51638840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{117361}}^1$

素因数の和:117383

約数の個数: 32

約数和(自身を含む): 126750960

約数和(自身を除く): 75112120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 117361, 234722, 469444, 586805, 938888, 1173610, 1290971, 2347220, 2581942, 4694440, 5163884, 6454855, 10327768, 12909710, 25819420, 51638840]

約数ペア:

[(1, 51638840), (2, 25819420), (4, 12909710), (5, 10327768), (8, 6454855), (10, 5163884), (11, 4694440), (20, 2581942), (22, 2347220), (40, 1290971), (44, 1173610), (55, 938888), (88, 586805), (110, 469444), (220, 234722), (440, 117361)]