1296236720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{3457}}^1$

素因数の和:3622

約数の個数: 80

約数和(自身を含む): 3113029920

約数和(自身を除く): 1816793200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 109, 172, 215, 218, 344, 430, 436, 545, 688, 860, 872, 1090, 1720, 1744, 2180, 3440, 3457, 4360, 4687, 6914, 8720, 9374, 13828, 17285, 18748, 23435, 27656, 34570, 37496, 46870, 55312, 69140, 74992, 93740, 138280, 148651, 187480, 276560, 297302, 374960, 376813, 594604, 743255, 753626, 1189208, 1486510, 1507252, 1884065, 2378416, 2973020, 3014504, 3768130, 5946040, 6029008, 7536260, 11892080, 15072520, 16202959, 30145040, 32405918, 64811836, 81014795, 129623672, 162029590, 259247344, 324059180, 648118360, 1296236720]

約数ペア:

[(1, 1296236720), (2, 648118360), (4, 324059180), (5, 259247344), (8, 162029590), (10, 129623672), (16, 81014795), (20, 64811836), (40, 32405918), (43, 30145040), (80, 16202959), (86, 15072520), (109, 11892080), (172, 7536260), (215, 6029008), (218, 5946040), (344, 3768130), (430, 3014504), (436, 2973020), (545, 2378416), (688, 1884065), (860, 1507252), (872, 1486510), (1090, 1189208), (1720, 753626), (1744, 743255), (2180, 594604), (3440, 376813), (3457, 374960), (4360, 297302), (4687, 276560), (6914, 187480), (8720, 148651), (9374, 138280), (13828, 93740), (17285, 74992), (18748, 69140), (23435, 55312), (27656, 46870), (34570, 37496)]