258888560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{313}}^1$

素因数の和:551

約数の個数: 120

約数和(自身を含む): 705753936

約数和(自身を除く): 446865376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 211, 245, 280, 313, 392, 422, 490, 560, 626, 784, 844, 980, 1055, 1252, 1477, 1565, 1688, 1960, 2110, 2191, 2504, 2954, 3130, 3376, 3920, 4220, 4382, 5008, 5908, 6260, 7385, 8440, 8764, 10339, 10955, 11816, 12520, 14770, 15337, 16880, 17528, 20678, 21910, 23632, 25040, 29540, 30674, 35056, 41356, 43820, 51695, 59080, 61348, 66043, 76685, 82712, 87640, 103390, 118160, 122696, 132086, 153370, 165424, 175280, 206780, 245392, 264172, 306740, 330215, 413560, 462301, 528344, 613480, 660430, 827120, 924602, 1056688, 1226960, 1320860, 1849204, 2311505, 2641720, 3236107, 3698408, 4623010, 5283440, 6472214, 7396816, 9246020, 12944428, 16180535, 18492040, 25888856, 32361070, 36984080, 51777712, 64722140, 129444280, 258888560]

約数ペア:

[(1, 258888560), (2, 129444280), (4, 64722140), (5, 51777712), (7, 36984080), (8, 32361070), (10, 25888856), (14, 18492040), (16, 16180535), (20, 12944428), (28, 9246020), (35, 7396816), (40, 6472214), (49, 5283440), (56, 4623010), (70, 3698408), (80, 3236107), (98, 2641720), (112, 2311505), (140, 1849204), (196, 1320860), (211, 1226960), (245, 1056688), (280, 924602), (313, 827120), (392, 660430), (422, 613480), (490, 528344), (560, 462301), (626, 413560), (784, 330215), (844, 306740), (980, 264172), (1055, 245392), (1252, 206780), (1477, 175280), (1565, 165424), (1688, 153370), (1960, 132086), (2110, 122696), (2191, 118160), (2504, 103390), (2954, 87640), (3130, 82712), (3376, 76685), (3920, 66043), (4220, 61348), (4382, 59080), (5008, 51695), (5908, 43820), (6260, 41356), (7385, 35056), (8440, 30674), (8764, 29540), (10339, 25040), (10955, 23632), (11816, 21910), (12520, 20678), (14770, 17528), (15337, 16880)]