281212.00000000

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4931}}^1$

素因数の和:4995

約数の個数: 32

約数和(自身を含む): 23969520

約数和(自身を除く): 13515800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 4931, 9862, 19724, 24655, 39448, 49310, 98620, 197240, 261343, 522686, 1045372, 1306715, 2090744, 2613430, 5226860, 10453720]

約数ペア:

[(1, 10453720), (2, 5226860), (4, 2613430), (5, 2090744), (8, 1306715), (10, 1045372), (20, 522686), (40, 261343), (53, 197240), (106, 98620), (212, 49310), (265, 39448), (424, 24655), (530, 19724), (1060, 9862), (2120, 4931)]