18413360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 31083472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 131, 140, 251, 262, 280, 502, 524, 560, 655, 917, 1004, 1048, 1255, 1310, 1757, 1834, 2008, 2096, 2510, 2620, 3514, 3668, 4016, 4585, 5020, 5240, 7028, 7336, 8785, 9170, 10040, 10480, 14056, 14672, 17570, 18340, 20080, 28112, 32881, 35140, 36680, 65762, 70280, 73360, 131524, 140560, 164405, 230167, 263048, 328810, 460334, 526096, 657620, 920668, 1150835, 1315240, 1841336, 2301670, 2630480, 3682672, 4603340, 9206680, 18413360]

約数ペア:

[(1, 18413360), (2, 9206680), (4, 4603340), (5, 3682672), (7, 2630480), (8, 2301670), (10, 1841336), (14, 1315240), (16, 1150835), (20, 920668), (28, 657620), (35, 526096), (40, 460334), (56, 328810), (70, 263048), (80, 230167), (112, 164405), (131, 140560), (140, 131524), (251, 73360), (262, 70280), (280, 65762), (502, 36680), (524, 35140), (560, 32881), (655, 28112), (917, 20080), (1004, 18340), (1048, 17570), (1255, 14672), (1310, 14056), (1757, 10480), (1834, 10040), (2008, 9170), (2096, 8785), (2510, 7336), (2620, 7028), (3514, 5240), (3668, 5020), (4016, 4585)]