80838280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1093}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 186384780

約数和(自身を除く): 105546500

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1093, 1720, 1849, 2186, 3698, 4372, 5465, 7396, 8744, 9245, 10930, 14792, 18490, 21860, 36980, 43720, 46999, 73960, 93998, 187996, 234995, 375992, 469990, 939980, 1879960, 2020957, 4041914, 8083828, 10104785, 16167656, 20209570, 40419140, 80838280]

約数ペア:

[(1, 80838280), (2, 40419140), (4, 20209570), (5, 16167656), (8, 10104785), (10, 8083828), (20, 4041914), (40, 2020957), (43, 1879960), (86, 939980), (172, 469990), (215, 375992), (344, 234995), (430, 187996), (860, 93998), (1093, 73960), (1720, 46999), (1849, 43720), (2186, 36980), (3698, 21860), (4372, 18490), (5465, 14792), (7396, 10930), (8744, 9245)]