40664240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11821}}^1$

素因数の和:11877

約数の個数: 40

約数和(自身を含む): 96751248

約数和(自身を除く): 56087008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 11821, 23642, 47284, 59105, 94568, 118210, 189136, 236420, 472840, 508303, 945680, 1016606, 2033212, 2541515, 4066424, 5083030, 8132848, 10166060, 20332120, 40664240]

約数ペア:

[(1, 40664240), (2, 20332120), (4, 10166060), (5, 8132848), (8, 5083030), (10, 4066424), (16, 2541515), (20, 2033212), (40, 1016606), (43, 945680), (80, 508303), (86, 472840), (172, 236420), (215, 189136), (344, 118210), (430, 94568), (688, 59105), (860, 47284), (1720, 23642), (3440, 11821)]