80760020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8537}}^1$

素因数の和:8600

約数の個数: 48

約数和(自身を含む): 189338688

約数和(自身を除く): 108578668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 8537, 9460, 17074, 34148, 42685, 85370, 93907, 170740, 187814, 367091, 375628, 469535, 734182, 939070, 1468364, 1835455, 1878140, 3670910, 4038001, 7341820, 8076002, 16152004, 20190005, 40380010, 80760020]

約数ペア:

[(1, 80760020), (2, 40380010), (4, 20190005), (5, 16152004), (10, 8076002), (11, 7341820), (20, 4038001), (22, 3670910), (43, 1878140), (44, 1835455), (55, 1468364), (86, 939070), (110, 734182), (172, 469535), (215, 375628), (220, 367091), (430, 187814), (473, 170740), (860, 93907), (946, 85370), (1892, 42685), (2365, 34148), (4730, 17074), (8537, 9460)]