72388780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2053}}^1$

素因数の和:2146

約数の個数: 48

約数和(自身を含む): 159423264

約数和(自身を除く): 87034484

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 2053, 3526, 4106, 7052, 8212, 8815, 10265, 17630, 20530, 35260, 41060, 84173, 88279, 168346, 176558, 336692, 353116, 420865, 441395, 841730, 882790, 1683460, 1765580, 3619439, 7238878, 14477756, 18097195, 36194390, 72388780]

約数ペア:

[(1, 72388780), (2, 36194390), (4, 18097195), (5, 14477756), (10, 7238878), (20, 3619439), (41, 1765580), (43, 1683460), (82, 882790), (86, 841730), (164, 441395), (172, 420865), (205, 353116), (215, 336692), (410, 176558), (430, 168346), (820, 88279), (860, 84173), (1763, 41060), (2053, 35260), (3526, 20530), (4106, 17630), (7052, 10265), (8212, 8815)]