266880440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{125887}}^1$

素因数の和:125951

約数の個数: 32

約数和(自身を含む): 611815680

約数和(自身を除く): 344935240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 125887, 251774, 503548, 629435, 1007096, 1258870, 2517740, 5035480, 6672011, 13344022, 26688044, 33360055, 53376088, 66720110, 133440220, 266880440]

約数ペア:

[(1, 266880440), (2, 133440220), (4, 66720110), (5, 53376088), (8, 33360055), (10, 26688044), (20, 13344022), (40, 6672011), (53, 5035480), (106, 2517740), (212, 1258870), (265, 1007096), (424, 629435), (530, 503548), (1060, 251774), (2120, 125887)]