257533068

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{269}}^1$

素因数の和:344

約数の個数: 144

約数和(自身を含む): 725850720

約数和(自身を除く): 468317652

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 19, 26, 34, 38, 39, 51, 52, 57, 68, 76, 78, 102, 114, 156, 204, 221, 228, 247, 269, 323, 361, 442, 494, 538, 646, 663, 722, 741, 807, 884, 969, 988, 1076, 1083, 1292, 1326, 1444, 1482, 1614, 1938, 2166, 2652, 2964, 3228, 3497, 3876, 4199, 4332, 4573, 4693, 5111, 6137, 6994, 8398, 9146, 9386, 10222, 10491, 12274, 12597, 13719, 13988, 14079, 15333, 16796, 18292, 18411, 18772, 20444, 20982, 24548, 25194, 27438, 28158, 30666, 36822, 41964, 50388, 54876, 56316, 59449, 61332, 66443, 73644, 79781, 86887, 97109, 118898, 132886, 159562, 173774, 178347, 194218, 199329, 237796, 239343, 260661, 265772, 291327, 319124, 347548, 356694, 388436, 398658, 478686, 521322, 582654, 713388, 797316, 957372, 1042644, 1129531, 1165308, 1262417, 1650853, 2259062, 2524834, 3301706, 3388593, 3787251, 4518124, 4952559, 5049668, 6603412, 6777186, 7574502, 9905118, 13554372, 15149004, 19810236, 21461089, 42922178, 64383267, 85844356, 128766534, 257533068]

約数ペア:

[(1, 257533068), (2, 128766534), (3, 85844356), (4, 64383267), (6, 42922178), (12, 21461089), (13, 19810236), (17, 15149004), (19, 13554372), (26, 9905118), (34, 7574502), (38, 6777186), (39, 6603412), (51, 5049668), (52, 4952559), (57, 4518124), (68, 3787251), (76, 3388593), (78, 3301706), (102, 2524834), (114, 2259062), (156, 1650853), (204, 1262417), (221, 1165308), (228, 1129531), (247, 1042644), (269, 957372), (323, 797316), (361, 713388), (442, 582654), (494, 521322), (538, 478686), (646, 398658), (663, 388436), (722, 356694), (741, 347548), (807, 319124), (884, 291327), (969, 265772), (988, 260661), (1076, 239343), (1083, 237796), (1292, 199329), (1326, 194218), (1444, 178347), (1482, 173774), (1614, 159562), (1938, 132886), (2166, 118898), (2652, 97109), (2964, 86887), (3228, 79781), (3497, 73644), (3876, 66443), (4199, 61332), (4332, 59449), (4573, 56316), (4693, 54876), (5111, 50388), (6137, 41964), (6994, 36822), (8398, 30666), (9146, 28158), (9386, 27438), (10222, 25194), (10491, 24548), (12274, 20982), (12597, 20444), (13719, 18772), (13988, 18411), (14079, 18292), (15333, 16796)]