257594590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2089}}^1$

素因数の和:2185

約数の個数: 64

約数和(自身を含む): 541728000

約数和(自身を除く): 284133410

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 59, 95, 110, 118, 190, 209, 295, 418, 590, 649, 1045, 1121, 1298, 2089, 2090, 2242, 3245, 4178, 5605, 6490, 10445, 11210, 12331, 20890, 22979, 24662, 39691, 45958, 61655, 79382, 114895, 123251, 123310, 198455, 229790, 246502, 396910, 436601, 616255, 873202, 1232510, 1355761, 2183005, 2341769, 2711522, 4366010, 4683538, 6778805, 11708845, 13557610, 23417690, 25759459, 51518918, 128797295, 257594590]

約数ペア:

[(1, 257594590), (2, 128797295), (5, 51518918), (10, 25759459), (11, 23417690), (19, 13557610), (22, 11708845), (38, 6778805), (55, 4683538), (59, 4366010), (95, 2711522), (110, 2341769), (118, 2183005), (190, 1355761), (209, 1232510), (295, 873202), (418, 616255), (590, 436601), (649, 396910), (1045, 246502), (1121, 229790), (1298, 198455), (2089, 123310), (2090, 123251), (2242, 114895), (3245, 79382), (4178, 61655), (5605, 45958), (6490, 39691), (10445, 24662), (11210, 22979), (12331, 20890)]