74981680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 181488384

約数和(自身を除く): 106506704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 80, 86, 142, 172, 215, 284, 307, 344, 355, 430, 568, 614, 688, 710, 860, 1136, 1228, 1420, 1535, 1720, 2456, 2840, 3053, 3070, 3440, 4912, 5680, 6106, 6140, 12212, 12280, 13201, 15265, 21797, 24424, 24560, 26402, 30530, 43594, 48848, 52804, 61060, 66005, 87188, 105608, 108985, 122120, 132010, 174376, 211216, 217970, 244240, 264020, 348752, 435940, 528040, 871880, 937271, 1056080, 1743760, 1874542, 3749084, 4686355, 7498168, 9372710, 14996336, 18745420, 37490840, 74981680]

約数ペア:

[(1, 74981680), (2, 37490840), (4, 18745420), (5, 14996336), (8, 9372710), (10, 7498168), (16, 4686355), (20, 3749084), (40, 1874542), (43, 1743760), (71, 1056080), (80, 937271), (86, 871880), (142, 528040), (172, 435940), (215, 348752), (284, 264020), (307, 244240), (344, 217970), (355, 211216), (430, 174376), (568, 132010), (614, 122120), (688, 108985), (710, 105608), (860, 87188), (1136, 66005), (1228, 61060), (1420, 52804), (1535, 48848), (1720, 43594), (2456, 30530), (2840, 26402), (3053, 24560), (3070, 24424), (3440, 21797), (4912, 15265), (5680, 13201), (6106, 12280), (6140, 12212)]