78776480

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4517}}^1$

素因数の和:4641

約数の個数: 48

約数和(自身を含む): 187858440

約数和(自身を除く): 109081960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 4517, 8720, 9034, 17440, 18068, 22585, 36136, 45170, 72272, 90340, 144544, 180680, 361360, 492353, 722720, 984706, 1969412, 2461765, 3938824, 4923530, 7877648, 9847060, 15755296, 19694120, 39388240, 78776480]

約数ペア:

[(1, 78776480), (2, 39388240), (4, 19694120), (5, 15755296), (8, 9847060), (10, 7877648), (16, 4923530), (20, 3938824), (32, 2461765), (40, 1969412), (80, 984706), (109, 722720), (160, 492353), (218, 361360), (436, 180680), (545, 144544), (872, 90340), (1090, 72272), (1744, 45170), (2180, 36136), (3488, 22585), (4360, 18068), (4517, 17440), (8720, 9034)]