257751760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1399}}^1$

素因数の和:1473

約数の個数: 120

約数和(自身を含む): 712454400

約数和(自身を除く): 454702640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 49, 56, 70, 80, 94, 98, 112, 140, 188, 196, 235, 245, 280, 329, 376, 392, 470, 490, 560, 658, 752, 784, 940, 980, 1316, 1399, 1645, 1880, 1960, 2303, 2632, 2798, 3290, 3760, 3920, 4606, 5264, 5596, 6580, 6995, 9212, 9793, 11192, 11515, 13160, 13990, 18424, 19586, 22384, 23030, 26320, 27980, 36848, 39172, 46060, 48965, 55960, 65753, 68551, 78344, 92120, 97930, 111920, 131506, 137102, 156688, 184240, 195860, 263012, 274204, 328765, 342755, 391720, 460271, 526024, 548408, 657530, 685510, 783440, 920542, 1052048, 1096816, 1315060, 1371020, 1841084, 2301355, 2630120, 2742040, 3221897, 3682168, 4602710, 5260240, 5484080, 6443794, 7364336, 9205420, 12887588, 16109485, 18410840, 25775176, 32218970, 36821680, 51550352, 64437940, 128875880, 257751760]

約数ペア:

[(1, 257751760), (2, 128875880), (4, 64437940), (5, 51550352), (7, 36821680), (8, 32218970), (10, 25775176), (14, 18410840), (16, 16109485), (20, 12887588), (28, 9205420), (35, 7364336), (40, 6443794), (47, 5484080), (49, 5260240), (56, 4602710), (70, 3682168), (80, 3221897), (94, 2742040), (98, 2630120), (112, 2301355), (140, 1841084), (188, 1371020), (196, 1315060), (235, 1096816), (245, 1052048), (280, 920542), (329, 783440), (376, 685510), (392, 657530), (470, 548408), (490, 526024), (560, 460271), (658, 391720), (752, 342755), (784, 328765), (940, 274204), (980, 263012), (1316, 195860), (1399, 184240), (1645, 156688), (1880, 137102), (1960, 131506), (2303, 111920), (2632, 97930), (2798, 92120), (3290, 78344), (3760, 68551), (3920, 65753), (4606, 55960), (5264, 48965), (5596, 46060), (6580, 39172), (6995, 36848), (9212, 27980), (9793, 26320), (11192, 23030), (11515, 22384), (13160, 19586), (13990, 18424)]