8889405940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1\times {\mathrm{15641}}^1$

素因数の和:15988

約数の個数: 48

約数和(自身を含む): 18891656784

約数和(自身を除く): 10002250844

約数列:

[1, 2, 4, 5, 10, 20, 157, 181, 314, 362, 628, 724, 785, 905, 1570, 1810, 3140, 3620, 15641, 28417, 31282, 56834, 62564, 78205, 113668, 142085, 156410, 284170, 312820, 568340, 2455637, 2831021, 4911274, 5662042, 9822548, 11324084, 12278185, 14155105, 24556370, 28310210, 49112740, 56620420, 444470297, 888940594, 1777881188, 2222351485, 4444702970, 8889405940]

約数ペア:

[(1, 8889405940), (2, 4444702970), (4, 2222351485), (5, 1777881188), (10, 888940594), (20, 444470297), (157, 56620420), (181, 49112740), (314, 28310210), (362, 24556370), (628, 14155105), (724, 12278185), (785, 11324084), (905, 9822548), (1570, 5662042), (1810, 4911274), (3140, 2831021), (3620, 2455637), (15641, 568340), (28417, 312820), (31282, 284170), (56834, 156410), (62564, 142085), (78205, 113668)]