258756820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1093}}^1$

素因数の和:1217

約数の個数: 96

約数和(自身を含む): 661651200

約数和(自身を除く): 402894380

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 89, 95, 133, 140, 178, 190, 266, 356, 380, 445, 532, 623, 665, 890, 1093, 1246, 1330, 1691, 1780, 2186, 2492, 2660, 3115, 3382, 4372, 5465, 6230, 6764, 7651, 8455, 10930, 11837, 12460, 15302, 16910, 20767, 21860, 23674, 30604, 33820, 38255, 41534, 47348, 59185, 76510, 83068, 97277, 103835, 118370, 145369, 153020, 194554, 207670, 236740, 290738, 389108, 415340, 486385, 581476, 680939, 726845, 972770, 1361878, 1453690, 1848263, 1945540, 2723756, 2907380, 3404695, 3696526, 6809390, 7393052, 9241315, 12937841, 13618780, 18482630, 25875682, 36965260, 51751364, 64689205, 129378410, 258756820]

約数ペア:

[(1, 258756820), (2, 129378410), (4, 64689205), (5, 51751364), (7, 36965260), (10, 25875682), (14, 18482630), (19, 13618780), (20, 12937841), (28, 9241315), (35, 7393052), (38, 6809390), (70, 3696526), (76, 3404695), (89, 2907380), (95, 2723756), (133, 1945540), (140, 1848263), (178, 1453690), (190, 1361878), (266, 972770), (356, 726845), (380, 680939), (445, 581476), (532, 486385), (623, 415340), (665, 389108), (890, 290738), (1093, 236740), (1246, 207670), (1330, 194554), (1691, 153020), (1780, 145369), (2186, 118370), (2492, 103835), (2660, 97277), (3115, 83068), (3382, 76510), (4372, 59185), (5465, 47348), (6230, 41534), (6764, 38255), (7651, 33820), (8455, 30604), (10930, 23674), (11837, 21860), (12460, 20767), (15302, 16910)]