215939240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{490771}}^1$

素因数の和:490793

約数の個数: 32

約数和(自身を含む): 530033760

約数和(自身を除く): 314094520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 490771, 981542, 1963084, 2453855, 3926168, 4907710, 5398481, 9815420, 10796962, 19630840, 21593924, 26992405, 43187848, 53984810, 107969620, 215939240]

約数ペア:

[(1, 215939240), (2, 107969620), (4, 53984810), (5, 43187848), (8, 26992405), (10, 21593924), (11, 19630840), (20, 10796962), (22, 9815420), (40, 5398481), (44, 4907710), (55, 3926168), (88, 2453855), (110, 1963084), (220, 981542), (440, 490771)]