209544760

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{547}}^1$

素因数の和:776

約数の個数: 64

約数和(自身を含む): 483138720

約数和(自身を除く): 273593960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 157, 244, 305, 314, 488, 547, 610, 628, 785, 1094, 1220, 1256, 1570, 2188, 2440, 2735, 3140, 4376, 5470, 6280, 9577, 10940, 19154, 21880, 33367, 38308, 47885, 66734, 76616, 85879, 95770, 133468, 166835, 171758, 191540, 266936, 333670, 343516, 383080, 429395, 667340, 687032, 858790, 1334680, 1717580, 3435160, 5238619, 10477238, 20954476, 26193095, 41908952, 52386190, 104772380, 209544760]

約数ペア:

[(1, 209544760), (2, 104772380), (4, 52386190), (5, 41908952), (8, 26193095), (10, 20954476), (20, 10477238), (40, 5238619), (61, 3435160), (122, 1717580), (157, 1334680), (244, 858790), (305, 687032), (314, 667340), (488, 429395), (547, 383080), (610, 343516), (628, 333670), (785, 266936), (1094, 191540), (1220, 171758), (1256, 166835), (1570, 133468), (2188, 95770), (2440, 85879), (2735, 76616), (3140, 66734), (4376, 47885), (5470, 38308), (6280, 33367), (9577, 21880), (10940, 19154)]